remember the tv show scrubs?
with what's his name with the hair who was in garden state and fantasized about being a floating head doctor that was on in the early 2000's. I used to watch it with my friend eric when I was in highschool but you probably didn't know that.
anyway I just found out that Ted the neurotic lawyer's barbershop quartet that he has in that one episode is actually a legit barbershop quartet in real life and they went on the BBC and did a cover of a bunch of songs including some katy perry track I've never heard of.
though I think it's safe to assume their version is better.