Christina Aguilera, a long-time fan of the late Etta James, took to the stage at the singer's funeral Saturday to pay tribute with her rendition of James' most famous song, "At Last."

Stevie Wonder also sang at the memorial, while the Reverend Al Sharpton officiated. Sharpton read a message from President Obama: "Etta will be remembered for her legendary voice and for her many contributions to our nation's musical heritage."

James died on Jan 20 at the age of 73.