Mark Ronson says Lady Gaga's upcoming album is "pretty deep." The hitmaker, who worked on most songs on Gaga's new record and is likely its executive producer, raved about collaborating with the superstar in a new interview with Buro 24/7's Tracy Phillips. "I went in on the first day with very open expectations," Mark recalled. "I didn't know if we would work together for two weeks or six months. I knew she was very talented, I'd seen her perform and knew how seriously she takes music. She'