I've just finished learning The Lemon Song by Led Zeppelin and I'm pretty bored with most rock 'n' roll songs

. They're fun to listen to but usually pretty boring to play.
I want to learn more funky, soulful songs that "groove" like the lemon song. Also I learned Superstition by Stevie Wonder recently and although it is somewhat repetitive, it has lots of room for improv which I find very enjoyable.
So any suggestions for "groovy" songs?
Thanks
