Celine Dion is offering free show tickets -- and a little companionship -- to a guy who turned a lonely night in the Las Vegas airport into a hilarious video.
If you haven't seen the clip (below) ... Richard Dunn is in the airport all alone, late at night, doing an incredible lip-sync version of Dion's "All By Myself."
Celine tells us ... she LOVED Dunn's performance. She even videotaped him a personal message ... telling him to look her up next time he's in town ... and making him a very personal offer.
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