Lady Gaga has a new manager. Bobby Campbell, who used to work for Gaga’s original manager, Troy Carter, is now in charge. I met Campbell, who left Carter on the same day as Gaga, last night at MusiCares before Gaga’s magnificent performance of “You’ve Got a Friend.” He’s relaxed, friendly, and young. The Mother Monster starts a big tour soon. In the fall, Sony will release Tony Bennett’s jazz duets album with Gaga as his partner. There is a lot to come in 2014.