Rihanna just got a huge gig with Puma — and aside from maybe Puma stockholders … no one is more excited about this than the fastest man in the world. She celebrated her new job by posting pics in some Puma kicks. Now, the good stuff — Puma’s other big spokesman is, of course, Usain Bolt … and we know the Olympic sprinter’s been jonesin’ to hookup with Rihanna because he told TMZ Sports about his crush last year.