Whitney Houston : Refuses to Buckle Seatbelt On Delta Flight

"Houston , we have a problem," was probably what a Delta Flight crew felt yesterday . Thanks to passenger Whitney Houston.

The singing star had been asked to buckle up as her flight from Atlanta to Detroit was about to take off , but incredibly she refused .

Houston was then asked again to adhere to the safety rule , and once more said "no."

Sources said Houston eventually relented , though reluctantly , when a second crew member  explained that if she didn't fasten her seatbelt , she'd be kicked off the flight .

Another source says Houston was not drunk or high , but in a bad mood  from being overtired and "annoyed" from having not making an earlier flight.