Canadian musician, songwriter, and producer David Foster has been a behind-the-scenes presence on some of the biggest emotion-fueled pop songs since the early 1980s. He’s channeled a feel for mainstream taste into balladry and mid-tempo vehicles conveying the universal highs and lows of romance. Among the smashes he’s penned are Chicago’s “You’re the Inspiration,” John Parr’s “St. Elmo’s Fire (Man in Motion),” and Cheryl Lynn’s “Got to Be Real.”