Max Martin contributed to Perry 's single `` California Gurls ''
`` Martin contributed to over half of Perry 's follow-up number 1 album Teenage Dream ( 2010 ) , including the Billboard Hot 100 numbers-one hits singles ( 2010 ) , `` '' Teenage Dream '' '' ( 2010 ) , `` '' E.T . '' '' ( 2011 ) , `` '' Last Friday Night ( T.G.I.F . ) '' '' ( 2011 ) and `` '' Part of Me '' '' ( 2012 ) . ''
Max Martin