Jordin Sparks Flaunts Figure in Sassy Bikini Photo

Jordin Sparks Bikini Photos, Pictures
Jordin Sparks
Courtesy: Jordin Sparks

updated 05/02/2011 AT 01:45 PM EDT

originally published 05/02/2011 AT 11:55 AM EDT

Jordin Sparks isn't shy.

The singer, 21, showed off her trim physique in a playful bikini photo on Twitter on Sunday.

Of her weight loss, the season 6 American Idol winner tells PEOPLE: "It was just a shift in my thinking. Instead of talking about being more active, I just got up and did it."

"There's no secret," she adds. "Anybody can do it."

Describing her polka dot orange and blue two-piece, she posted online, "I don't know why but my bathing suit reminds me of fruity pebbles."

Want to get her look? The savvy shopper shares that her "top is from Target & bottoms from Old Navy!"

But her slender look isn't keeping Sparks from indulging in sweets every now and then. "Love that I can now bake my coconut rum raisin cupcakes because I can legally buy the rum! Ha!" she Tweets.
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