One of my fondest memories from high school were my days in my old acapella group the En Harmonics. Seriously, we were never that good. Anyway, here's a tribute by seriously one man shows
Gabriel Soto - Longest Time
Gabriel Soto again - Blue Moon / We Belong Together
Star Wars Tribute by Corey Vidal
Corey is not really singing, just lip synching, unlike Gabriel Soto. The voice is from Moosebutter.