Supermodel Kate Upton finally turning 21 years old on Monday, after making tongues wag ever since her infamous Cat Daddy video with famed photographer Terry Richardson. Wearing just a tiny bikini, she danced to music by the Rej3ctz in the video that quickly went viral. Afterward, she landed her first Sports Illustrated cover at just 19 years old.

Upton has since had quite a busy career, landing on the cover of Sports Illustrated magazine again at the age of 20, being featured on Maxims’s Hot 100 list and being labeled the "sexiest supermodel on Earth" by Vogue.

Her next career move shows off her acting skills, as she is staring in the upcoming film “The Other Woman.” While it is unclear what her exact role is, the comedy also features stars Cameron Diaz, Taylor Kinney, Nicki Minaj and "Knocked Up" actress Leslie Mann. The comedy is scheduled to be released April 25, 2014. Check out Upton's hottest looks:

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Kate Upton in latest issue of Vogue Tumblr
Kate Upton
Kate Upton in Vogue Tumblr
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Kate Upton in Vogue's summer issue Tumblr
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Kate Upton Sports Illustrated
Kate Upton
"Sports Illustrated" Swimsuit cover girl Kate Upton. The model was recently photographed topless in a new photoshoot. Tumblr
Kate Upton Bikini
Kate Upton Tumblr
Critic Who Calls Kate Upton Fat Threated And Hacked By Anonymous [PHOTOS, VIDEO]
Kate Upton poses in GQ GQ
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Kate Upton models Beach Bunny swimwear Beach Bunny
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