 Nas promoted the album with television appearances and performances on The Colbert Report , Late Show with David Letterman , Jimmy Kimmel Live ! , and 106 & Park . He also headlined the Rock the Bells music festival and emarked on a three @-@ week European tour during June and July 2012 . Nas co @-@ headlined the " Life Is Good / Black Rage " tour with Lauryn Hill , performing from October 29 to December 31 , when he performed an exclusive show at Radio City Music Hall in New York City with Elle Varner as the supporting act . 
