WHEN YOU’RE HOT, YOU’RE HOT: Sony’s prime mover in recent months has been Steve Barnett’s high-powered Columbia, which has practically been printing money with the Glee franchise, and can now claim Adele as the biggest breakthrough since Lady Antebellum and Justin Bieber a year ago, as her sophomore album 21 (already past 1 million in the U.K.) hits 750k units in the U.S. after four weeks, with 3m in this country alone a realistic expectation by year’s end. (3/24a)