What singer's signature song is "At Last", also covered by Tina Moore?
Tina Moore (album):  The album also features a cover of "At Last", the signature song of Etta James. Etta James: Etta James (born Jamesetta Hawkins; January 25, 1938 – January 20, 2012) was an American singer who performed in various genres, including blues, R&B, soul, rock and roll, jazz and gospel.
Etta James