As reported by the irreplaceable TMZ, it seems Soulja Boy was removed from an American Airlines flight last night after "causing a pre-flight scene". After a flight attendant asked all passengers to take their seats, Soulja apparently refused to do so, and was subsequently dealt with. 

Although TMZ's headline reads "Soulja Boy Kicked Off Plane For Being Un-American", we're fairly sure his patriotism had nothing to do with it, and he's since issued an apology. "It was a bad night and me and the flight staff didn’t see eye to eye. In hindsight, I’m extremely sorry for all inconvenience caused to the passengers and employees of the airline." 

Fair enough. No need to sensationalize this any further.

Peep video evidence of the incident below: