Ben Harper with Charlie Musselwhite
Pair plot North American tour in support of follow-up to 2013 Grammy-winning LP 'Get Up!'
Listen to 'A House Is a Home,' the poignant first single from upcoming Mother's Day release
"I'd go into the studio tonight," Harper tells RS, fresh off Grammy win
'Rolling Stone' photographers capture the hottest live shows
Pair dig into their recent collaboration 'Get Up!'