Jay Leno

Simon Cowell and his sharp tongue are back! On 'The Tonight Show With Jay Leno,' Cowell offered unfailingly honest opinions of his fellow judges on 'The X Factor,' which is set to premiere tonight.

On Thursday night's 'The Tonight Show,' a surprisingly sane, good-humored and contrite Charlie Sheen opened up  to host Jay Leno about his very public meltdown earlier this year, saying his now-infamous rants were "a runaway train that I was the reluctant conductor of — and it just kept going."

Christina Applegate must be a fan of  'Jersey Shore.' How else to explain her frequent interruptions during Pauly D's appearance on 'The Tonight Show' last night?

'Jersey Shore' star the Situation may have a way with the ladies, but Jesse Eisenberg seems immune to his dubious charms.

On last night's 'Tonight Show,' Roseanne Barr announced that she'll be running for president in 2012. Even more surprising is that she claims to be completely serious. "I am running for president of the United States," she said. "I've got to solve all the world's problems. I'm totally serious because I want to be part of the debates. I want to represent the taxpapers and, in fact, I

While most men would probably call this a happy accident, Ryan Reynolds panicked when Olivia Wilde's pasties accidentally came off while filming a sex scene for 'The Change Up,' he said on 'The Tonight Show.' As Wilde disrobed for the scene, Reynolds told host Jay Leno he found himself literally speechless at the sight of her. "She has these pasties on, but she's drawn these adorable little s

Filming a scene with Ryan Gosling that evokes the iconic lift from 'Dirty Dancing' might seem like fun. But for starlet Emma Stone, it brought back a painful childhood memory and earned her co-star several kicks in the throat. On last night's 'Tonight Show,' Stone said she was filled with terror over being lifted in the air by Gosling for a scene in their new flick 'Crazy, Stupid Love.' In it, Gos