Adam Clayton & Larry Mullen are members of the pop/rock act U2, who joined forces away from the main band to record the theme to the Mission:Impossible movie. Adam Clayton, Born: March 13, 1960, Oxfordshire, England. Musician best known as the bassist of the Irish rock band U2. Lawrence Mullen Jr. was born in Artane, Dublin, Ireland and is the founder of U2. He is more commonly known as Larry Mullen Jr. The "Junior" suffix was added to his name to stop confusion with his father (also Larry Mullen), who was receiving large tax bills meant for his son.