Jamie Costa: Watch His Incredible Robin Williams Impressions

— -- Young comedian Jamie Costa took to YouTube earlier this week to pay tribute to "the man whose spark ignited my passion" -- the late, great Robin Williams.

His video, titled "Never Had a Friend Like Him," is a montage of impressions spun from the Williams' classic roles in films such as "The Fisher King," "Good Morning, Vietnam" and "The Birdcage."

Costa actually looks the part, too. Check it out! He covers almost all of Williams' films.