In an interview with ABC in February, the actor blasted Two and a Half Men creator Chuck Lorre and proclaimed he was "not bipolar but 'bi-winning.'" He also called Lorre a "turd" and a "clown." 

In December, the 30 Rock star was kicked off an American Airlines flight when he refused to turn off his iPhone. He went on to mock the incident in a Saturday Night Live sketch.

In October, the singer threw a pre-flight fit when a flight attendant tried to make her fasten her seatbelt. A source told Us of the incident, "What can I say? She's Whitney Houston. She can be a diva."