Martin Kierszenbaum, also known by his pseudonym of Cherry Cherry Boom Boom, is a graduate of the University of Michigan, where he was a member of Maroon, University of a Southern California graduate (Master’s in Communications Management), founder and Chairman of Pop Alternative label, management company and publishing firm The Cherrytree Music Company. He is also A&R, apart from being a songwriter and a producer for Lady Gaga, Sting, Madonna, Mylène Farmer, Keane, Tokio Hotel, Feist, Far East Movement, Colette Carr and Natalia Kills. He has co-written songs for Lady Gaga, t.A.T.u., Mylène Farmer, Robyn, Flipsyde, Far East Movement, Ivy Levan, Tokio Hotel, Ai, and Alexandra Burke. 　　His pseudonym, Cherry Cherry Boom Boom, is referred to in the Lady Gaga songs "Christmas Tree", "Eh, Eh (Nothing Else I Can Say)", "The Fame", "I Like It Rough" and "Starstruck". Also in the song "I Wanna Touch You" by Colby O'Donis and "White Flag" by Far East Movement featuring Kayla Kai, from their album Free Wired.[citation needed] It is also referenced in some of Space Cowboy's music such as his singles "Falling Down", "I Came 2 Party" (that featured Cinema Bizarre), and the first part of his pseudonym "cherry cherry" is referred to in "Not in Love" by Natalia Kills. 　　Martin featured in a remix of Far East Movement's "Like a G6" with Colette Carr called "G6 (V6 Reflip)". He also features in backing vocals on "Not In Love", a track from Natalia Kills's debut album, Perfectionist.