FILE - This July 5, 2009 file photo shows Al Green performing during the Essence Music Festival in New Orleans. Jennifer Hudson sang Green's classic "Let's Stay Together," at an inaugur

 

              FILE - This July 5, 2009 file photo shows Al Green performing during the Essence Music Festival in New Orleans. Jennifer Hudson sang Green
FILE - This July 5, 2009 file photo shows Al Green performing during the Essence Music Festival in New Orleans. Jennifer Hudson sang Green's classic "Let's Stay Together," at an inaugural ball Monday, Jan. 21, 2013, leaving many to wonder why the soul legend wasn't singing his own hit for President Barack Obama and first lady Michelle Obama. In a statement to The Associated Press, his representative said Green had been asked to sing, but scheduling conflicts prevented him from attending Monday's festivities. Green said he'd be honored to sing for the president in the future. (AP Photo/Patrick Semansky, file)