Kelly Sheehan (born July 26, 1983), also known as "Madame Buttons", is a songwriter and recording engineer from Los Angeles. Kelly Sheehan has written songs for Kylie Minogue, Beyoncé, DJ Khaled, Mary J. Blige and others. She has engineered for Justin Bieber, Mariah Carey, Chris Brown, Katharine McPhee, Tyrese, T.I., The Game, Akon, Ne-Yo, Charlie Wilson, Toni Braxton, Avant, Keri Hilson and others.In 2011, Kelly Sheehan signed to Dr.