The year-old singer may have won almost every category at the iHeartRadio Music Awards on Thursday night, but she has no chance ever winning a poker game. The Pour it Up singer could not even pretend to enjoy Ariana Grande's performance. Scroll down for video No poker face: Rihanna laughed her way through Ariana Grande's performance at the iHeartRadio Music Awards on Thursday night As the year-old star took to the stage to sing her hit The Way and then her new single Problem, the combination of the young star's costume changes and overly choreographed backup dancers was just too much for Rihanna. While at first the singer managed to keep a straight - albeit slightly bored face - by the time Ariana had stripped down to a sequin mini dress with white gogo boots, Rihanna was unable to keep it in. As the iHeart cameras panned back to where the Diamonds star was sitting, she was in hysterics.
The Barbados beauty told the March issue of the fashion bible, 'If I'm wearing a top, I don't wear a bra. If I'm wearing a bra, I just wear a bra. Speaking from the heart: In the March issue of US Vogue, cover girl Rihanna admitted she doesn't like to wear a bra if she has a shirt on, and won't wear a shirt if she has a bra on; she's pictured in Miu Miu The cover girl explained she didn't take to girlish clothes because she really wasn't around her gender growing up.