Look who came to see us during a studio session? Mister Cherry Cherry, Boom Boom– Martin Kierszenbaum! Martin Kierszenbaum aka. Cherry Cherry, Boom Boom is head of A&R at Interscope Records and president of Interscope’s subsidiary imprint Cherry Tree Records. He is a songwriter and producer as well as A&R for t.A.T.u., Sting, Keane West, and Feist. He produced Lady Gaga’s first live EP, “The Cherry Tree Sessions.” From 2008 to 2010, Kierszenbaum was one of two A&R for Lady Gaga. Since then he continues to work as Interscope’s head of international.