"She and I are talking about doing a second album," the singer tells Billboard. The Cheek to Cheek pop standards collection topped the Billboard 200 when it was released during September 2014 and won a Grammy Award for best traditional pop vocal album. It also spawned a successful PBS special and concert tour. "She's busy right now, but at the beginning of next year we'll start doing an album. The first one went way over a million, and it's still selling."