Have you ever wondered what it would be like if Henry Rollins and Tom Petty got into a fight? Sorry, Tom, you'd be toast, unless you used Canadian trickery. But you can hear a similar thing go down when King Elephant performs a Tom Petty cover set and Sharmana rawks a Rollins-era Black Flag set tonight, with BOYS and Battle Stations. VFW, 245 W. Main St. 10 PM. $2.