Jordin Sparks Tweeted a Sexy Bikini Photo of Herself

JORDIN SPARKS Tweeted a sexy bikini photo of 

It's obvious that Jordin has lost some weight.  And she told "People" magazine how she did it . . . quote, "It was just a shift in my thinking.  Instead of talking about being more active, I just got up and did it.

 herself the other day.