
It turns out that a crew from CBS's 60 Minutes were doing a story about SNL's creative process and were rolling tape during Ashlee's rehearsal. They have video of her barely getting through the rehearsal, then running off stage crying and holding her throat. They also show the actually live mess up, and Ashlee running offstage again. It also shows an SNL rep coming out of Ashlee's dressing room saying, "Oh my god!"
I think it's a pretty interesting story to follow. It's no secret that many artists out there today lipsynch or sing along to tracks at live performances, but this is the first real incident of someone getting busted since Milli Vanilli! Luckily for Ashlee the old saying holds true: Any publicity is good publicity.