Toni Braxton -- Wardrobe Malfunction At Concert [Video]

Toni Braxton's dress did the world a favor and slid right off while she was performing -- exposing her voluptuous ass -- and TMZ has the glorious moment.

It went down during Toni's concert this week in New Brunswick, NJ. In the middle of a song, Toni's ensemble -- which resembled a loin cloth dipped in glitter -- just plum fell off.

Best part ... Toni just kept singing, until a guy on stage handed her his suit jacket to cover up the goods.