Whitney Houston Almost Booted From Flight for Seatbelt Sass

In this Feb. 13, 2011 file photo, singer Whitney Houston performs at the pre-Grammy gala & salute to industry icons with Clive Davis honoring David Geffen in Beverly Hills, Calif. The singer's rep confirms she just entered rehab. (AP) (AP2011)

Whitney Houston may not be on drugs anymore, but she may still have issues, TMZ reports.

Houston almost got kicked off a Delta Airlines flight Wednesday because she refused to buckle her seatbelt.

Multiple sources tell TMZ that. Houston boarded a flight in Atlanta Wednesday afternoon, and when she settled into her seat, a crew member asked her to buckle up.

Houston refused and "got diva" on the crew member until another crew member came over and warned Houston that if she didn't buckle up, she would have to get off the plane.

Whitney eventually allowed one of the crew members to grab the buckle and fasten it for the singer, and the plane was then cleared for takeoff.

Sources close to the singer tell TMZ Houston "overreacted a little bit after missing an earlier flight but she's still 100 percent sober and was on the way to Detroit for her first day of shooting a new movie."

"Bodyguard 2" perhaps?

Perhaps not.