Dress code-flouting Rihanna participated in a Bob Marley tribute on stage at the Grammys tonight. Viewers — and probably the CBS fashion police force — watched in mock horror as she almost caused a major wardrobe malfuction. Out: Sideboob. In: Underboob. Egad:

https://twitter.com/NoelMarie5/status/300804534068969474

https://twitter.com/Amber_romAnCE1/status/300796079413293057

https://twitter.com/SharonLLevy/status/300804828475559936

https://twitter.com/xyzceecee/status/300806471640313857

Watch: