Martin Kierszenbaum, also known by his pseudonym Cherry Cherry Boom Boom, is an American music personality. As a songwriter and producer he worked with Lady Gaga, Sting, Madonna, Mylène Farmer, Keane, Tokio Hotel, Far East Movement, Robyn, Feist, Flipsyde, Ivy Levan, Ai, Samantha Fish, Alexandra Burke and Natalia Kills. He owns The Cherrytree Music Company which developed the careers of Lady Gaga, LMFAO, Disclosure, Ellie Goulding, La Roux and t.A.T.u. Kierszenbaum also releases music under his own name and under his nickname Cherry Cherry Boom Boom.