The singer and songwriter, who died on Friday at 86, gave voice to teenage dreams, then executed one of music’s most unexpected comebacks.

He sang and co-wrote some of the definitive teenage anthems of the 1950s and early ’60s, including “Breaking Up Is Hard to Do,” and then reinvented his career in the ’70s.

The Brooklynite's esteemed body of work also includes "Calendar Girl," "Oh! Carol," "Love Will Keep Us Together," "Where the Boys Are," "Bad Blood" and "Solitaire." ...

Billboard caught up with the production duo about their “Shake It to the Max” follow-up and that shocking Grammy snub.