** FILE ** This Feb. 10, 2013, file photo shows recording artists Just Timberlake, left, and Jay-Z performing at the 55th annual Grammy Awards in Los Angeles. On Friday, Feb. 22, the pair announced their 12-city Legends of the Summer tour beginning July 17 in Toronto and ending Aug. 16 in Miami. (Photo by John Shearer/Invision/AP, file)

Photo by: John Shearer

** FILE ** This Feb. 10, 2013, file photo shows recording artists Just Timberlake, left, and Jay-Z performing at the 55th annual Grammy Awards in Los Angeles. On Friday, Feb. 22, the pair announced their 12-city Legends of the Summer tour beginning July 17 in Toronto and ending Aug. 16 in Miami. (Photo by John Shearer/Invision/AP, file)