This week on the charts: Bruno Mars’s “Locked Out of Heaven” holds at No. 1 on the Billboard 100, and his new album, Unorthodox Jukebox, debuts at No. 2 (192,000 copies sold). What’s No. 1 on the album side, you might ask, if you had not read the above headline? Taylor Swift’s Red. Hope you’re looking forward to a “22” sing-along this Christmas.