He co-wrote dozens of hits with Burt Bacharach . His songs include `` Raindrops Keep Falling on My Head '' Frank Sinatra , Barbra Streisand and Dionne Warwick recorded his songs . In the early 1970s he was a member of The Mamas & The Papas, which included future members David Crosby and Graham Nash.
He co-wrote dozens of hits with Burt Bacharach . His songs include `` Raindrops Keep Falling on My Head '' Frank Sinatra , Barbra Streisand and Dionne Warwick recorded his songs . He was an Oscar and Grammy Award winner .