You’ll Never Guess Who’s Sporting This GIANT 80s Hair While Singing With Michael Jackson [VIDEO]

We all had some pretty lofty hair in the 80s.  It was ... well, tubular.

Check out Sheryl Crow's coif as she gets her start as a back-up singer for Michael Jackson.  Impressive.

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Now check out how many other REALLY big stars got their start as back-ups!