After her mother surprised America with a rendition of Etta James's 'At Last', Gabourey Sidibe has said that she is proud of her mama.

Alice Tan Ridley, 58, appeared infront of judges on 'America's Got Talent' and wowed them with her version of the classic.

Sidibe told Us Magazine: "I was very proud of her. What advice would I be able to give her? She's my mama! She's recorded albums and she's had a great career performing. Now it's just different because it will be in front of more people."

Did you catch her performance - what did you reckon?

Check out our pictures of Gabourey Sidibe at the recent BET afterparty - check out who else was there...