Long before Jimmy Fallon was on "SNL" or Liv Tyler was elfing it up in "The Lord of the Rings," the two of them were a pop duo trying to make it big by competing in talent shows.

If you're surprised that this is the first time you're reading about it, it's because their musical past is a well-kept secret. It turns out both of the stars have had a little work done -- tooth work, that is -- and they're not too proud of how they looked before their makeovers.

Just take a peek at this clip from Monday night's "Late Night" if you don't believe us.

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  • "Tebowie" Part Two

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  • "History Of Rap" Part Two With Justin Timberlake

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  • Neil Young & Bruce Springsteen Sing 'Whip My Hair'