Singers, from left, Sam Moore, Mavis Staples, and Justin Timberlake, joke together during a workshop, “Soulsville, USA: The History of Memphis Soul,” Tiesday, April 9, 2013, in the Stat

 

              Singers, from left, Sam Moore, Mavis Staples, and Justin Timberlake, joke together during a workshop, “Soulsville, USA: The History of Memphis Soul,” Tiesday, April 9, 2013, in the Stat
Singers, from left, Sam Moore, Mavis Staples, and Justin Timberlake, joke together during a workshop, “Soulsville, USA: The History of Memphis Soul,” Tiesday, April 9, 2013, in the State Dining Room of the White House in Washington. First lady Michelle Obama hosted a daytime event for students before tonight's “In Performance at the White House". (AP Photo/Jacquelyn Martin)