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Lady Gaga - Gaga made headlines after giving a speech wearing this oversized Marc Jacobs suit to the Elle Women in Hollywood Celebration. She explained that she tried on dress after dress but that "in this suit, I felt the truth of who I am well up in my gut."

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Rihanna -

Before there was Lady Gaga, there was RiRi. In 2017, this baggy blazer and pants combination divided opinions, but people are finally starting to warm to it.

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Olivia Wilde - The actress donned a deep green Erdem suit with wide-legged pants at Variety's Creative Impact Awards.

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Olivia Wilde - She cut a daring figure at the premiere of 'Rush' in 2013, pairing head-to-toe black with a bright pop of red on her lips.

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Gigi Hadid - The model glowed brighter than the red carpet at the 2016 Much Music Video Awards.

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Bella Hadid - The younger Hadid sister ushered in the spring blossoms at the Dior Homme Menswear spring 2019 show wearing a bright yellow suit.

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Yolanda Hadid - Gigi and Bella Hadid got it from their mama! Yolanda Hadid wore this red hot number at the Oscar de la Renta show during New York Fashion Week in 2018.

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Gwyneth Paltrow - The actress swapped in shorts and gave the shirtless blazer look a summery feel at the 'Iron Man' premiere.

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Kim Kardashian - At a LACMA event in 2017, the socialite didn't think her Gucci jacket needed any other support.

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Kim Kardashian - Kim K makes the shirtless blazer an all-seasons outfit.

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Kourtney Kardashian - Kourtney Kardashian stepped out at the CFDA Fashion Awards in a sparkling Christian Siriano suit, which a shirt would honestly just ruin.

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Jennifer Lawrence - The star wore a unique long, form-fitting black jacket as a dress at the 2014 film premiere for 'Serena.'

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Shay Mitchell - The actress looks festive in a green velvet suit with black silk lapels and a plunging neckline.

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Lucy Hale - The actress went sleeveless at the ABC Freeform Upfront in 2016, perfectly mixing simple and chic.

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Naomi Campbell - The legendary supermodel looked predictably amazing in this Alexandre Vauthier suit, toting a large medallion around her neck to top it all off.

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Hailey Baldwin - The young model is also not afraid to mix things up, going sleeveless and pantless in this shiny number in 2015.

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Sarah Hyland - The 'Modern Family' star has an adorable baby face, but this 2015 look far surpassed adorable.

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Priyanka Chopra - Chopra paired a large, matte black blazer with starry, wide-legged pants for a premiere in 2017.

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Rachel McAdams - McAdams broke from her usual flowing gowns to wear this hot shade of lipstick from head-to-toe at the 2015 ESPYS.

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Emma Watson - The 'Beauty and the Beast' star is known for her impeccable style choices, and this oversized jacket combined with a pair of floating white trousers is exactly her brand of casual chic. 

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Kristen Stewart - Stewart pitched up in this maroon suit with bleach blonde hair at the premiere for 'Certain Women' in 2016.

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Stella Maxwell - The model played with fabrics in this look, combining velvet, satin, and leather into one killer outfit.

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Dakota Johnson - The 'Fifty Shades of Grey' star was red hot at the 2017 Hollywood Film Awards.

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Miley Cyrus - In what seems like a millennia ago, or at least some style changes ago, the pop star wore a white suit to the AMAs in 2013.

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Blake Lively - Everyone knows Lively is the queen of suits, but she only graces us with a shirtless blazer look once in a while, like this 2011 midnight blue spectacle.

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Irina Shayk - The Russian supermodel served up chic and sleek in this shiny black suit.

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Chloë Grace Moretz - The young actress attended an edition of the Museum of Modern Art Film Benefit in a double-breasted pastel suit.

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Anna Kendrick - At the 2015 Grammys, the actress went for a basic black suit with a deep V-cut neckline, keeping things cool and classy.

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Chrissy Teigen - If anyone loves maximum effect with minimal effort, it's Teigen, and this taupe suit is doing it.

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Liv Tyler -

She's not that Converse-loving, short-skirt-wearing girl anymore, and she has the blazer to prove it.

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Saoirse Ronan - This pastel yellow monochrome outfit looks equally warm as it does cool.

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Rutina Wesley - As if you need any more reason to go out and get a black suit? The 'True Blood' and 'Queen Sugar' actress impresses in this number.

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Elisabeth Moss -

Moss is actually wearing a jumpsuit that looks like a suit, so we're not sure if that counts as shirtless, but she does look fantastic.

See also: Celebrities who repeated their outfits at important events

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