Rihanna strips down to a sports bra for sultry new Puma campaign ad

(adsbygoogle = window.adsbygoogle || []).push({}); She was named creative director of Puma in December last year. But Rihanna's work for the sports brand is starting to gain momentum as he second sultry ad campaign was teased by the singer on Tuesday.  Seen spinning around in front of a wind machine in a sports bra, the musician appears to be adding her own effortlessly cool edge to