Typically, all Nick Jonas needs to do to make teenage girls scream is show up someplace.
But the singer really made fans go crazy at the Concert for Hope last night - and you won't believe how: by singing a verse from "Friday," the track that has made Rebecca Black famous/infamous.
Love that 13-year old singer or find her all that's wrong with the Internet, fans in Universal City, California went crazy when Jones covered her new smash. See /hear for yourself:
Nick, his brothers and Selena Gomez performed at the third annual gathering for this event, which raises money and awareness for cancer research. Watch the latter sing her hit, "Who Says," below.