Faking it: Lip-sync's greatest hits

A collective boo and hiss moved across the globe last week as word spread that the sweet-voiced cherub actually didn't sing the song spotlighted during China's Olympic opening ceremony.

It was actually another, supposedly less photogenic, child.

If there could be a mix tape of lip-syncing's greatest hits, it would have to include the following:

Milli Vanilli: The pop duo burned up the charts with its debut single, “Girl You Know It's True,” and earned a Grammy in 1990 for best new artist. The jig was up later that year when during a live performance, the recording began to skip.

Ashlee Simpson: If you're caught, blame it on “acid reflux.” That's what Jessica Simpson's younger sister did when confronted about using prerecorded music for a 2004 performance on Saturday Night Live, which is supposed to be, uh, live.

C+C Music Factory: Vocalist Martha Wash, a woman of size with a voice to match, sang the recorded version of the 1990s hit “Everybody Dance Now.” But as far as the MTV set knew, the thinner Zelma Davis was the lead singer since she certainly appeared that way in the video.

Britney Spears: Last year, months before the debacle at MTV's Video Music Awards, Spears phoned in a series of House of Blues shows. As the Orange County Register put it after one act in Anaheim, Calif., “Spears didn't even try to hide the fact that she was faking it, smacking her gum like a cow chewing its cud instead of mouthing words.”