Britney sports a boot, extends Vegas run

Britney Spears makes an appearance on Ellen DeGeneres' show today and offers up two bits of Brit-Brit news.

One: She doesn't have a sprained ankle, as was suspected given her fall on a Vegas stage last week.

"I tore some ligaments," she tells Ellen, adding "I've never actually fell on stage."

She didn't say how long she'd be sidelined.

Two: She's extending her Planet Hollywood Vegas run "for three more months."