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See Again
© Getty Images
0 / 41 Fotos
Pitbull
- Mr. Worldwide hit the benchmark birthday on January 15.
© Getty Images
1 / 41 Fotos
Alicia Keys
- The singer's hubby Swizz Beats paid her a beautiful birthday tribute on January 25.
© Getty Images
2 / 41 Fotos
Elijah Wood
- The ‘Lord of the Rings’ star embarked on another adventure around the sun on January 28.
© Getty Images
3 / 41 Fotos
Justin Timberlake
- Timberlake is bringing sexy back to 40 on January 31.
© Getty Images
4 / 41 Fotos
Tom Hiddleston
- The trickster hero turns 40 on February 9.
© Getty Images
5 / 41 Fotos
Uzo Aduba
- The 'Orange Is the New Black' actress celebrates her birthday on February 10.
© Getty Images
6 / 41 Fotos
Kelly Rowland
- Rowland's birthday is on February 11, and she's not the only former Destiny's Child member hitting 40!
© Getty Images
7 / 41 Fotos
Paris Hilton
- Hitting 40 on February 17? That's hot!
© Getty Images
8 / 41 Fotos
Joseph Gordon-Levitt
- The actor has a long and varied career to celebrate on February 17.
© Getty Images
9 / 41 Fotos
Josh Gad
- The actor and singer, known for voicing Olaf in 'Frozen,' celebrates his birthday on February 23.
© Getty Images
10 / 41 Fotos
Josh Groban
- The singer might have to serenade himself on February 27 if COVID-19 restrictions are in place.
© Getty Images
11 / 41 Fotos
Bryce Dallas Howard
- The 'Jurassic Park' actress reaches her milestone on March 2.
© Getty Images
12 / 41 Fotos
Julia Stiles
- Stiles marks the second actor from ‘10 Things I Hate About You’ to turn 40 this year (after Joseph Gordon-Levitt). Her birthday is on March 28.
© Getty Images
13 / 41 Fotos
Alessandra Ambrosio
- The Brazilian supermodel will officially be raising the bar ridiculously high for 40-year-olds on April 11.
© Getty Images
14 / 41 Fotos
Hayden Christensen
- The force of forties will be with him on April 19.
© Getty Images
15 / 41 Fotos
Jessica Alba
- The actress, entrepreneur, and mom will hit 40 on April 28.
© Getty Images
16 / 41 Fotos
Danielle Fishel
- Girl meets 40 on May 5!
© Getty Images
17 / 41 Fotos
Rami Malek
- The actor doesn't look it, but he'll be 40 years old on May 12.
© Getty Images
18 / 41 Fotos
Amy Schumer
- Here's hoping Schumer finds new things to poke fun at in her forties, which start on June 1.
© Getty Images
19 / 41 Fotos
Larisa Oleynik
- Another '10 Things I Hate About You' actress turns 40, but this one's on June 7!
© Getty Images
20 / 41 Fotos
Natalie Portman
- For 28 years in the film industry, 40 seems young! Portman reaches her milestone, somehow still with a level head, on June 9.
© Getty Images
21 / 41 Fotos
Chris Evans
- Captain America steps into his distinguished forties on June 13.
© Getty Images
22 / 41 Fotos
Taylor Kinney
- The actor, also known as Lady Gaga’s ex-fiancé, hits 40 on July 15.
© Getty Images
23 / 41 Fotos
Meghan Markle
- The Duchess of Sussex is scheduled for a royally good time on August 4.
© Getty Images
24 / 41 Fotos
Jesse Williams
- The 'Grey's Anatomy' star hits 40 on August 5.
© Getty Images
25 / 41 Fotos
Leslie Odom Jr.
- The 'Hamilton' star marks four decades on August 6.
© Getty Images
26 / 41 Fotos
Roger Federer
- The Swiss tennis icon turns 40 on August 8, and he's not giving up on the game, even after two knee surgeries!
© Getty Images
27 / 41 Fotos
Chad Michael Murray
- On August 24, the ‘One Tree Hill’ star will inevitably get a year older.
© Getty Images
28 / 41 Fotos
Rachel Bilson
- Summer from 'The O.C.' somehow turns 40 on August 25!
© Getty Images
29 / 41 Fotos
Patrick J. Adams
- On August 27, Adams will be the second 'Suits' actor to turn 40 this year (following his co-star Meghan Markle).
© Getty Images
30 / 41 Fotos
Beyoncé
- Every day is Bey-Day, but September 4 is officially Queen Bey's B-Day.
© Getty Images
31 / 41 Fotos
Jennifer Hudson
- On September 12 people should probably ask Hudson to sing her own 'Happy Birthday' song because her voice is incomparable!
© Getty Images
32 / 41 Fotos
Nicole Richie
- Just like her 'The Simple Life' co-star Paris Hilton, Richie hits 40 this year, on September 21.
© Getty Images
33 / 41 Fotos
Serena Williams
- The legendary tennis star has lost none of her fire as she steps into her 40th year on September 26.
© Getty Images
34 / 41 Fotos
Alexis Bledel
- This one is a blow for anyone who remembers her on 'Gilmore Girls.' Little Rory turns 40 on September 16.
© Getty Images
35 / 41 Fotos
Susan Kelechi Watson
- The 'This Is Us' actress celebrates her birthday on November 11.
© Getty Images
36 / 41 Fotos
Vanessa Bayer
- The hilarious 'Saturday Night Live' star turns 40 on November 14.
© Getty Images
37 / 41 Fotos
Britney Spears
- Oops! Another year did it again. The pop icon turns 40 on December 2.
© Getty Images
38 / 41 Fotos
Krysten Ritter
- Jessica Jones is ready to kick some more butt in her forties, which start on December 16.
© Getty Images
39 / 41 Fotos
Sienna Miller
- Rounding off the list is Sienna Miller, who will hopefully have some 'Layer Cake' on December 28. See also: Astrological predictions for 2021
© Getty Images
40 / 41 Fotos
© Getty Images
0 / 41 Fotos
Pitbull
- Mr. Worldwide hit the benchmark birthday on January 15.
© Getty Images
1 / 41 Fotos
Alicia Keys
- The singer's hubby Swizz Beats paid her a beautiful birthday tribute on January 25.
© Getty Images
2 / 41 Fotos
Elijah Wood
- The ‘Lord of the Rings’ star embarked on another adventure around the sun on January 28.
© Getty Images
3 / 41 Fotos
Justin Timberlake
- Timberlake is bringing sexy back to 40 on January 31.
© Getty Images
4 / 41 Fotos
Tom Hiddleston
- The trickster hero turns 40 on February 9.
© Getty Images
5 / 41 Fotos
Uzo Aduba
- The 'Orange Is the New Black' actress celebrates her birthday on February 10.
© Getty Images
6 / 41 Fotos
Kelly Rowland
- Rowland's birthday is on February 11, and she's not the only former Destiny's Child member hitting 40!
© Getty Images
7 / 41 Fotos
Paris Hilton
- Hitting 40 on February 17? That's hot!
© Getty Images
8 / 41 Fotos
Joseph Gordon-Levitt
- The actor has a long and varied career to celebrate on February 17.
© Getty Images
9 / 41 Fotos
Josh Gad
- The actor and singer, known for voicing Olaf in 'Frozen,' celebrates his birthday on February 23.
© Getty Images
10 / 41 Fotos
Josh Groban
- The singer might have to serenade himself on February 27 if COVID-19 restrictions are in place.
© Getty Images
11 / 41 Fotos
Bryce Dallas Howard
- The 'Jurassic Park' actress reaches her milestone on March 2.
© Getty Images
12 / 41 Fotos
Julia Stiles
- Stiles marks the second actor from ‘10 Things I Hate About You’ to turn 40 this year (after Joseph Gordon-Levitt). Her birthday is on March 28.
© Getty Images
13 / 41 Fotos
Alessandra Ambrosio
- The Brazilian supermodel will officially be raising the bar ridiculously high for 40-year-olds on April 11.
© Getty Images
14 / 41 Fotos
Hayden Christensen
- The force of forties will be with him on April 19.
© Getty Images
15 / 41 Fotos
Jessica Alba
- The actress, entrepreneur, and mom will hit 40 on April 28.
© Getty Images
16 / 41 Fotos
Danielle Fishel
- Girl meets 40 on May 5!
© Getty Images
17 / 41 Fotos
Rami Malek
- The actor doesn't look it, but he'll be 40 years old on May 12.
© Getty Images
18 / 41 Fotos
Amy Schumer
- Here's hoping Schumer finds new things to poke fun at in her forties, which start on June 1.
© Getty Images
19 / 41 Fotos
Larisa Oleynik
- Another '10 Things I Hate About You' actress turns 40, but this one's on June 7!
© Getty Images
20 / 41 Fotos
Natalie Portman
- For 28 years in the film industry, 40 seems young! Portman reaches her milestone, somehow still with a level head, on June 9.
© Getty Images
21 / 41 Fotos
Chris Evans
- Captain America steps into his distinguished forties on June 13.
© Getty Images
22 / 41 Fotos
Taylor Kinney
- The actor, also known as Lady Gaga’s ex-fiancé, hits 40 on July 15.
© Getty Images
23 / 41 Fotos
Meghan Markle
- The Duchess of Sussex is scheduled for a royally good time on August 4.
© Getty Images
24 / 41 Fotos
Jesse Williams
- The 'Grey's Anatomy' star hits 40 on August 5.
© Getty Images
25 / 41 Fotos
Leslie Odom Jr.
- The 'Hamilton' star marks four decades on August 6.
© Getty Images
26 / 41 Fotos
Roger Federer
- The Swiss tennis icon turns 40 on August 8, and he's not giving up on the game, even after two knee surgeries!
© Getty Images
27 / 41 Fotos
Chad Michael Murray
- On August 24, the ‘One Tree Hill’ star will inevitably get a year older.
© Getty Images
28 / 41 Fotos
Rachel Bilson
- Summer from 'The O.C.' somehow turns 40 on August 25!
© Getty Images
29 / 41 Fotos
Patrick J. Adams
- On August 27, Adams will be the second 'Suits' actor to turn 40 this year (following his co-star Meghan Markle).
© Getty Images
30 / 41 Fotos
Beyoncé
- Every day is Bey-Day, but September 4 is officially Queen Bey's B-Day.
© Getty Images
31 / 41 Fotos
Jennifer Hudson
- On September 12 people should probably ask Hudson to sing her own 'Happy Birthday' song because her voice is incomparable!
© Getty Images
32 / 41 Fotos
Nicole Richie
- Just like her 'The Simple Life' co-star Paris Hilton, Richie hits 40 this year, on September 21.
© Getty Images
33 / 41 Fotos
Serena Williams
- The legendary tennis star has lost none of her fire as she steps into her 40th year on September 26.
© Getty Images
34 / 41 Fotos
Alexis Bledel
- This one is a blow for anyone who remembers her on 'Gilmore Girls.' Little Rory turns 40 on September 16.
© Getty Images
35 / 41 Fotos
Susan Kelechi Watson
- The 'This Is Us' actress celebrates her birthday on November 11.
© Getty Images
36 / 41 Fotos
Vanessa Bayer
- The hilarious 'Saturday Night Live' star turns 40 on November 14.
© Getty Images
37 / 41 Fotos
Britney Spears
- Oops! Another year did it again. The pop icon turns 40 on December 2.
© Getty Images
38 / 41 Fotos
Krysten Ritter
- Jessica Jones is ready to kick some more butt in her forties, which start on December 16.
© Getty Images
39 / 41 Fotos
Sienna Miller
- Rounding off the list is Sienna Miller, who will hopefully have some 'Layer Cake' on December 28. See also: Astrological predictions for 2021
© Getty Images
40 / 41 Fotos
40 celebs turning 40 this year
Find out which stars were born in 1981
© Getty Images
As the years keep flying by, all our numbers tick higher and higher, but we spend far too much time worrying about all that. In your twenties, you get to build yourself up with whatever you can grab, and then your thirties are all about refining everything you've accumulated, so that in your forties you have truly taken shape—and you still have tons of energy to spare!
Since 50 is apparently the new 30, turning 40 is nothing to be scared of. Unless, of course, you're watching the actors from your favorite teen flicks and the singers who soundtracked your youthful memories hit 40 when you were least expecting it. Like this year!
Click through to see the celebrities turning 40 in 2021.
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