I can sing the Beatles pretty well, I guess.
My best songs would be Bat Country, Burn It Down, and The Beast And The Harlot from Avenged Sevenfold's City Of Evil album. No, seriously, once me and the friend that introduced me to A7X got together and sang those 3 songs with guitar, drums, and bass backing by some casual gig-players we knew.
It was fucking EPIC.
We were then asked to leave.