Sports Illustrated supermodel Kate Upton treated her fans to a hot swimsuit photo baring her cleavage as she celebrated her 23^rd birthday.

The voluptuous supermodel celebrated her birthday in her own way as she showed off her enviable curves while wearing a hot white swimsuit via posting a snap shot on her Instagram account, E! Online told in their recent report.

The Bobbi Brown brand ambassador said in her caption, "You know just standing by a fake palm tree #vmag #sebastianfaena."

Kate Upton's hot photo first appeared at an earlier issue of V Magazine, which featured her in a studio that was set-up as a beach. She can be seen doing her thing while pointing at a fake palm tree.

The supermodel also flaunted her tanned figure in a stunning one piece swimsuit as she added inches to her towering height with a pair of metallic pumps.

Kate Upton's hot photo showed how she ran her fingers seductively on her curly blond hair, The Daily Mail said in a report.

Meanwhile, the model's baseball player boyfriend also took to his social media account to greet Kate Upton on her birthday.

Justin Verlander said, "Happy birthday @KateUpton! I hope your day is as amazing as you are!"

Kate Upton and Justin Verlander may have been in a relationship for the past year but they have kept their romance low-key. Despite trying to keep things under wrap, they never fail to show their sweetness via their social media posts.

The American model has been busy filming her fourth movie "The Layover" with her co-star Alexandra Daddario.

The story revolves around two gal pals played by the actresses, who had a layover in St. Louis because of a reported hurricane.

Later in the story, the two found themselves battling over the same guy that they met during their pit stop.

Kate Upton's latest movie is set to hit big screens next year. In 2014, the hot model first showcased her acting chops in the sexy comedy film "The Other Woman" alongside Cameron Diaz.