
Inspired by Barack Obama’s 2008 presidential campaign, r&b’s classiest crooner has teams up with hip-hop’s best band to record socially conscious songs from the 1960s and ’70s. The material includes Marvin Gaye’s “Wholy Holy,” Nina Simone’s “I Wish I Knew How it Would Feel to Be Free” and Bill Withers’ “I Can’t Write Left Handed.” Can the Roots and Legend, a six-time Grammy winner, make these old soul, gospel, funk and reggae numbers from another era sound fresh and still relevant? Yes, they can.