Selena Gomez Turns 20: The Birthday Girl’s Hottest Bikini Looks (PHOTOS)

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SelGo & Biebs: PDA Pair
Selena Gomez and Justin Bieber love packing on the PDA!
Justin & SelGo Kiss!
Justin Bieber & Selena Gomez pack on the PDA in Canada.
Selena Gomez is all grown up.

On Sunday, July 22, the “Love You Like a Love Song” songstress enters into the young adult phase by turning the big 2-0.

Her last teen year has been quite the busy one though as she bid farewell to Wizards of Waverly Place after four successful seasons to focus on a burgeoning film career.

Taking on more challenging roles, Gomez’s latest work — the bikini-filled Spring Breakers with Vanessa Hudgensand Ashley Benson — has her tapping into a naughtier side that her fans has never seen before.

To celebrate Gomez’s venture into young adulthood — and not to mention sexier film roles — Celebuzz is taking a look at her hottest bikini moments.

However, Gomez admits she had a tough time actually acting naughty. Soon after shooting had wrapped on Spring Breakers, SelGo confesses that the cast actually had to teach her how to channel her inner bad girl.

“I mean, I’d never smoked a cigarette before in my entire life. It was really funny—they had to show me how to do it,” Gomez,Justin Bieber‘s girlfriend, says in Interview magazine.

“It was a mark thing for me—like, ‘This is what I want to be doing.’ I want to be taking myself seriously as an actress, and this was definitely a stretch.”

Aside from Spring Breakers, Gomez also has The Getaway, Aftershock, Thirteen Reasons Why, and animated film Hotel Transylvania currently in production.

This former Barney & Friends star certainly has a busy year ahead of her too.

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