Taiwanese Dude Nails Whitney Houston!!

This guy is going to blow your friggin' mind!!!!!!

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The guy in this video is Lin Yu Chun -- a reality show contestant who covered Whitney Houston's "I Will Always Love You" for a show in Taiwan called "Super Star Avenue" ... and dude CRUSHED IT!!!!!!!

Chun is a favorite to win the million dollar grand prize on the show -- and people are already calling him the next Susan Boyle.

Just watch the clip ... and yes, if you happen to get a little emotional ... it's perfectly normal.