Lindsay Lohan was forced to cancel her appearance on the "Tonight Show" last night, but her absence was not felt because the show's host, Jay Leno had a substitute. The 21-year-old actress was replaced by comedian Rob Schneider and the show carried on.

Donning a blonde wig, black dress and an alcohol monitoring device strapped to her leg, Schneider took the hot seat as Lindsay.

Leno opened the show by saying: "You know, we had Lindsay Lohan booked for our show tonight, but apparently she was already 'booked.' I thought our competition was Letterman and Nightline, but it turns out its Cops and America's Most Wanted."

Schneider, posing as the "Mean Girls" star explains how she got up late last night and was given 'another kind of coke' by her assistant instead of the Diet Coke she demanded.

Lohan was arrested Tuesday morning after Santa Monica, Calif. police spotted her car chasing another. She failed a sobriety test, and cops found cocaine on her. She was booked on two misdemeanor charges of driving under the influence and with a suspended license, as well as two drug related charges.

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