Mariah Carey honours Patti LaBelle at 'Black Girls Rock'...

Legends stick together!

The flawless Mariah Carey presented the incomparable Patti LaBelle with the Living Legend Award for BET's 'Black Girls Rock' at last night's ceremony!

She looked so gooood!

It looked like MC cut her Alexander McQueen gold-embroidered halter dress in half to create a new ensemble. And she pulled it off!

More pics inside!