"Martin gave Luke one of his first big breaks when he enlisted the younger musician as a partner on "Since U Been Gone," the 2004 Clarkson smash; the two continue to collaborate."

"Cheiron’s work on Spears’ second album ‘Oops! ... I Did It Again’ offers a revealing perspective on Cheiron’s working methods. When Britney arrived at the studio in November 1999, the 7 songs the team contributed to the album had already been written and the backing tracks completed. The young star simply spent a week adding her vocals. Martin and the Cheiron team essentially worked like a band that employed guest vocalists."