ZZ Top!!!
No question.
One of my friends brought Tejas into school one day. I remember looking at the album cover while on the bus going home.
(I graduated in 1979.)
I thought that any band that looked this cool, had to be great! I immediately went out and bought the album and wasn't disappointed.
I still listen to them regularly, and have seen them live several times.
Not real crazy about the stuff after Eliminator, though.
Eric