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Whose knees are these? -

The knees on the left belong to a Colombian singing sensation. Those on the right belong to someone who is also a famous Latina, though she was born in the Bronx, New York.

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Shakira and Jennifer Lopez -

Shakira and Jennifer Lopez perform during the Pepsi Super Bowl LIV Halftime Show at Hard Rock Stadium in February 2020 in Miami, Florida.

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Whose knees are these? -

These knees rose to fame as the central member of pop-R&B group Destiny's Child.

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Beyoncé -

Beyoncé on stage during The Formation World Tour at Soldier Field in May 2016 in Chicago, Illinois.

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Whose knees are these? -

These knees belong to a singer who relocated to Nashville, Tennessee in 2004 to pursue a career in country music.

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Taylor Swift -

An early incarnation of Taylor Swift, performing on stage during the first ever Academy of Country Music New Artists' Show Party for a Cause in May 2007 in Las Vegas, Nevada.

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Whose knees are these? -

Her image reinventions and musical versatility mean the knees belonging to this singer are always seen in different costumes, on and off stage.

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Lady Gaga -

Lady Gaga performs on stage during SiriusXM + Pandora Present Lady Gaga at the Apollo on June 2019 in New York City.

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Whose knees are these? -

These knees have come along way since appearing on the children's television show 'Barney & Friends.'

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Selena Gomez -

Actress and singer Selena Gomez arrives at Nickelodeon's 26th Annual Kids' Choice Awards on March 2013 in Los Angeles, California.

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Whose knees are these? -

The knees seen here belong to one of Spain's most successful actresses, who made her movie debut in 1992 in 'Jamón Jamón.'

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Penélope Cruz -

Penélope Cruz attends the 70th Bambi Awards at Stage Theater in November 2018 in Berlin, Germany.

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Whose knees are these? -

Born in South Africa, this actress took her knees to Hollywood in 1994 to become one of the biggest names in cinema.

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Charlize Theron -

Charlize Theron attends the 2019 ELLE Women in Hollywood event in Beverly Hills, California.

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Whose knees are these? -

These knees support an actress who has appeared in three of the five highest-grossing films of all time.

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Zoe Saldana -

Attending the 26th Annual GLAAD Media Awards in March 2015 in Beverly Hills is Zoe Saldana.

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Whose knees are these? -

The knees on these legs belong to an English actress who costarred in a series of magical movies that were simply wizard to watch.

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Emma Watson -

English actress Emma Watson, winner of the Style Icon award, poses in the press room for the ELLE Style Awards in February 2011 in London, England.

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Whose knees are these? -

One of the world's best-selling music artists, this singer and her knees are presently serving as a judge on 'American Idol.'

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Katy Perry -

A radiant Katy Perry attends the premiere event for 'American Idol' in February 2020 in Hollywood.

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Whose knees are these? -

These pair of knees are often seen walking into the United Nations, or a court building somewhere. On other occasions, they're keeping in step with one of Hollywood's top leading men.

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Amal Clooney -

Enjoying a March 2015 night out in New York City is Amal Clooney, hand in hand with husband George.

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Whose knees are these? -

These knees, indeed these legs, have graced fashion runways all over the world, belong as they do to one of the most recognizable and in-demand models of the late 1980s, the 1990s, and early 2000s.

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Naomi Campbell -

English supermodel Naomi Campbell attends a Vogue party as part of Paris Fashion Week in October 2017.

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Whose knees are these? -

This bended knee belongs to a celebrity socialite and heiress who is named after a famous city.

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Paris Hilton -

A shimmering Paris Hilton attends the boohoo.com x Paris Hilton Collection launch party in June 2018 in West Hollywood, California.

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Whose knees are these? -

These knees recently got back together with some old buddies to star in a reunion special of a television sitcom that was a huge hit in the 1990s and early 2000s.

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Jennifer Aniston -

Here Jennifer Aniston attends the 67th Annual Golden Globes Awards in January 2010 in Beverly Hills.

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Whose knees are these? -

First seen in a soap opera down under in the mid-1980s, these knees belong to an entertainer who went on to become the highest-selling female Australian artist of all time.

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Kylie Minogue -

Singer Kylie Minogue acknowledges the audience while performing live for fans at Qantas Credit Union Arena in March 2015 in Sydney, Australia.

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Whose knees are these? -

Arguably reality TV's most famous knees, they've been photographed everywhere. No major celebrity event is complete without this mom of four.

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Kim Kardashian -

Kim Kardashian attends the 2019 Met Gala in New York City.

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Whose knees are these? -

These regal looking knees very likely belong to Britain's future queen consort.

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Catherine, Duchess of Cambridge -

Catherine, Duchess of Cambridge is pictured during a visit to the Clock Tower in the city of Leicester in central England, in March 2012.

See also: Celebrity quiz: can you match these stars to their footwear? 

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