Peter Mensch (born March 28, 1953) is a music manager who lives in Manhattan.Mensch started his career in music management at the age of 26, managing AC/DC. In 1982, he formed the management company Q Prime with Cliff Burnstein. Their first client was Def Leppard. Q Prime has managed the careers of a large number of multiplatinum acts; including Metallica and Red Hot Chili Peppers, Muse, Josh Groban, Hole,Snow Patrol and many others, including Jimmy Page. The Financial Times has called Q Prime "One of the most admired artist management companies".