Rihanna

From Mariah Carey to Justin Bieber and more, at one point these stars abstained from, ahem, pleasures of the flesh.

Some stars are low-key and choose to drive the same cars as you and me. Others swing in the opposite direction and are out and about in rides so lavish that one has to wonder if celebrities really do try to one-up each other.

She will star in and create songs for a new ‘Smurfs.’