Celebrity comes with hot- and cold-running perks, from free couture to personal chefs, but one of the best fringe benefits of fame has to be flying the less-than-friendly skies without being forced to breathe the recycled air of the riffraff.

This thought apparently crossed the mind of Britney Spears on Friday -- it remains unclear whether it was accompanied on its lonely journey by a tumbleweed or two -- when she boarded a commercial flight from Los Angeles to Florida.

The New York Post reports the bygone pop starlet demanded that she be allowed to exit the plane just minutes before takeoff because she was supposedly miffed the seats weren't covered in supple, butt-softened animal hide.

"She just said, 'I don't want to fly on this plane. It hasn't got leather seats,'" the paper quotes passenger Tony Sanchez as saying (via Splash News). "[The captain] said a passenger wanted to get off so he had to respect their wishes. He didn't say it was Britney Spears ... Some people were getting really annoyed."

Britney, who was heading to Florida to do that lip-synching, bumping-and-grinding thing she does so, well, adequately, instead called for a private plane to pick her up, says photo agency X17, which snapped her climbing off a Gulfstream jet at the Orlando airport around 2 a.m.

She hit the stage in town that night, although her sold-out, 14-minute set was so plagued with problems that at one point, she was apparently forced to -- wait for it -- sing live.

Wearing her usual uniform of a black undie-revealing micro-miniskirt and ever-more-holey fishnets, the Britster had to pick up the vocal slack when her ditty "Do Something" skipped, concertgoers tell Pink Is the New Blog.

"She just smiled, giggled and sang over the track," gushes one (easily) impressed fan. "She totally saved it! I was so excited we got to be the first crowd to really hear her sing!"

There were also technical difficulties the next night in Miami. It seems that in a Spinal Tap-like moment, Spears' sparkly bra either got stuck on her microphone during an onstage costume change (per Access Hollywood) or gave way under the force of her enthusiastic gyrations (per People, which says she retained what remained of her dignity thanks to a pink bra she had on underneath).

The mag says Brit was "flustered" by the lingerie mishap and soon bolted offstage with a coy smile, letting her backup dancers complete the number. She returned a few minutes later with a black bustier over the pink bra.

Spears celebrated the semisuccessful mouthing of her greatest hits by stepping out on the town Sunday night in a black bikini and a Mrs. Roper-esque wrapper.

The Miami Herald reports the Promises rehab grad partied with pals into the early morning hours of Monday morning, downing shots ("lots of them," says a mole) and boogying down.

"Spears was dancing around like a crazy lady," a spy tells the paper. "She is definitely back in the scene."

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