Country singer Gretchen Wilson behaved so badly on a recent flight to Los Angeles, American Airlines was forced to issue an in-flight citation and write up what the airline calls a "disturbance report." Wilson, who was traveling in coach from Nashville to LA on Wednesday evening, became "belligerent and verbally abusive" to staff when they asked her to put her dog back in its carrier case. Sources on the plane say that a flight attendant attempted to discuss the situation in the back, but Wilson responded with a "F*** you!" Sources also say her group was drinking on board, and those privileges were taken away. A rep for the singer has not commented.