Conversation so far:
Where did Allen Toussaint grow up?
Allen Toussaint was born in 1938 in New Orleans and grew up in a shotgun house in the Gert Town neighborhood
Did Allen Toussaint move out of the dangerous Gert Town?
Did Allen Toussaint have any siblings?
Allen Toussaint was the youngest of three children
How did Allen Toussaint's career start?
After a lucky break at age 17, in which Allen Toussaint stood in for Huey Piano Smith at a performance with Earl King's band in Prichard, Alabama

Question: What was the name of the band?
Self-contained rewrite: What was the name of the band which Allen Toussaint stood in for Huey Piano Smith at a performance in Prichard, Alabama?