Here is Christina Aguilera, Beyonce Knowles and Etta James singing “At Last”.
Christina:
Beyonce:
Etta:
Postscript: A few weeks after I posted this Beyonce wound up singing this song for Barack Obama when he took his first dance with his wife as president. Etta James, who is still alive and still singing, was understandably upset.
See also:
Abagond 