FILE - This July 6, 2009 file photo shows U.S. singer Chaka Khan performing in the Miles Davis Hall stage at the 43rd Montreux Jazz Festival, in Montreux, Switzerland. The Grammy-winning singer kicks off the Newport Jazz Festival, which celebrates its 55th anniversary this weekend. (AP Photo/Keystone, Jean-Christophe Bott, File)
November 3, 2011 11:45:47 AM PDT
NEW YORK (AP) - November 3, 2011 --
Singing an Aretha Franklin song is a formidable task for anyone - even for Rock and Roll Hall of Fame nominee Chaka Khan.