Composer, arranger, producer, and keyboardist David Foster is among the most commercially successful producers and composers in all of popular music, lending his signature sweeping power-ballad aesthetic to smash hits by Céline Dion, Chicago, Barbra Streisand, and Whitney Houston while virtually defining the adult contemporary format. In the 21st century, he's helped launch the multi-platinum careers of male crooners Josh Groban and Michael Bublé, plus serving as chairman of the Verve Music Group from 2012 to 2016.