From the recording Knocking at Your Door

Critics love the way Larry sings this jaunty, party-time Elmore James classic, Mad Hatter (Roosevelt Purifoy) rockin' on piano.
Elmore played with and was a friend of Larry's father Eddie Taylor Sr. 
Larry has played with Elmore James Jr. (right)

Lyrics

Baby Who's that, knocking at your door" / Well, it must have been my best friend / And I don't live here no more...