Chris Brown and Rihanna celebrated music's biggest night together this past Sunday. And after the big show they went to an after party at Supperclub.

Now TMZ.com is reporting the couple was smoking weed in the club and they have the photos to prove it! But that's not all... Chris and Rihanna left in the same car later that night and Chris was driving! A serious issue not only because it's illegal but because it would also violate his probation.

Check out the full story at TMZ.com