By now you have all read about pop singer Ashlee Simpson’s lip-syncing blunder on Saturday Night Live last weekend, right? How Simpson performed her hit single "Pieces of Me" without incident for her first spot, but when she came back to sing "Autobiography," the first lines of her singing "Pieces of Me" could be heard again? The audience could see she was holding her microphone at her waist at the time, so there was no way it was her live voice that was being heard. Simpson looked momentarily confused as the band plowed ahead, made some goofy hopping dance moves, then walked off the stage.

At the end of the show, Simpson blamed the mishap on her band playing the wrong song, but by the next day she blamed the incident on “chronic gastric disorder,” telling MTV's TRL that the acid reflux disease caused her to lose her voice and rely on a backing tape for her performance. She claimed it was the first, and last, time she has used a backing track.

Her manager/father Joe Simpson then called up Los Angeles radio DJ Ryan Seacrest to confirm his daughter needed the extra help because the disease made her voice hoarse. "Just like any artist in America, she has a backing track that she pushes so you don't have to hear her croak through a song on national television," he said.

This isn't the first time a musical performer has goofed or done something unplanned on Saturday Night Live, and it surely won’t be the last. That’s the chance you take with live TV. Let’s look at some other S.N.L. musical performance controversies, shall we?

Elvis Costello 1977 – The Sex Pistols were scheduled to appear as musical guests in December 1977 but had to cancel due to visa problems. They were replaced at the last minute by Elvis Costello. The bespeckled rocker wanted to play his anti-radio rant “Radio, Radio,” but his label said he had to perform the less controversial "Less Than Zero." Costello agrees… that is until about 20 seconds into the song when he turns to his band, yells at them to stop, and says, “Let’s play ‘Radio, Radio.” They rip into it and make TV history, being the first artist to essentially flip off his label on national television.

Rolling Stones 1978 – It was bad enough that Mick Jagger’s voice was completely blown from relentless touring, and we had to hear him croak his way through “Beast of Burdon,” “Respectable,” “Shattered,” but then in a fit of rock ‘n’ roll shenanigans, we got to see Jagger plant a big , wet French kiss right on guitarist Ron Wood’s open mouth! Yes, these two chaps completely made out on national TV, lashing tongues like they were in a spit-swappin’ contest! Hey man, that’s why the Stones are the real bad boys of rock, right? They didn’t get to be legends by just playin’ the friggin’ songs!

Fear 1981– John Belushi was a huge punk-rock fan and his favorite bands were the Dead Boys and Fear. Fear, Hollywood’s most notorious punk band in the early ‘80s, was lead by charismatic soon-to-be actor Lee Ving, who often taunted his audience with homophobic and racist taunts (all in "good fun," ya understand). Fear came on and did two things that made their seldom rerun performance defy all SNL logic: 1. After performing “I Don’t Care About You,” for their first song, they returned with an unheard-of-for-a-punk-band medley of their hits, the unholy trilogy of terror that is “Beef Bologna/New York's Alright If You Like Saxophones/Let's Have A War.” 2. They invited the punker-heavy crowd onstage to mosh… and they did. Lead by Belushi himself, the crowd stormed the stage with such ferocity they immediately trampled the band’s gear and unplugged several instruments. Within seconds, it was chaos… pure, unplanned, history-making chaos. Punk went public that day.

Sinead O’ Connor 1992 – The bald Irish vixen made headlines in 1992 when she tore up a photograph of Pope John Paul II at the conclusion of singing Bob Marley's "War" and remarked "Fight the real enemy." Reportedly, her action reflected her anger at the Catholic church and its non-support of women's rights in Ireland. When the program was rerun, her performance was cut. Ironically, by the time it re-ran, her career also happened to be over.

And who can forget the time announcer Don Pardo called Portishead “Walrushead” in the opening credits? Or when introducing John Mayer, Jack Black called him John Meyer… ahhh, memories…