Fergie [1] took the stage to perform at The Creative Coalition's Benefit Gala during the Democratic National Convention in Philadelphia on Wednesday night. The "M.I.L.F. $" singer and mom to son Axl Duhamel [2] looked hotter than ever in a black one-piece and thigh-high boots as she sang a few of her solo hits, then linked up with her Black Eyed Peas bandmate Taboo. Fergie [3] burst back onto the music scene earlier this month with the release of her supersexy "M.I.L.F. $" video [4] — the clip features Fergie and her celebrity mom friends Kim Kardashian, Chrissy Teigen, and Ciara [5] walking with strollers, breastfeeding, and taking milk showers — and obviously got people talking. "Changing the acronym to 'Moms I'd Like To Follow' is about empowering women who do it all," Fergie told Entertainment Weekly [6]. "They have a career, a family, and still find the time to take care of themselves and feel sexy. With a wink of course."