Superstar vocalist, QVC diva, and A-list fave-slayer Mariah Carey has had enough accolades for several lifetimes awarded her — but even so, it must feel good to be honored for her philanthropic efforts.

Mimi got emancipated to London this past weekend to accept her award at the Noble Gift Gala in London, where she was presented with the Noble Gift Humanitarian Award by Jermaine Jackson and Eva Longoria. Carey's charity work has focused on helping disadvantaged children, and apparently she's doing a killer job — since the event was pretty high-profile!

Guests were even treated to a performance by Leona Lewis — although we're assuming that, given the charitable intent of the gala, the two chanteuses managed to keep from getting into a diva-off.

Proceeds raised from the event went to Eva Longoria's charity, The Eva Longoria Fund, which also works to help underprivileged kids, especially in the Latino community. Carey was hugely appreciative of Eva's efforts, even tweeting to her the following morning: "You're a wonderful humanitarian and a beautiful person. Thank you so much for your kind words at the charity event last night." Aww — way to give back, you guys!

Best of all, Carey posted a video of herself exiting the limo and entering the venue from last night, then accepting her award. She's in typical flawless diva mode, big shades and all, but she's perfectly humble when she gets up on stage. We love it!

Watch Mariah Carey Accept Her Award at the Noble Gift Gala