President Barack Obama may be the first sitting president to visit a federal prison, but he won't be the first person of note to spend some face time with inmates.

Guitarist Wayne Kramer of the band MC5 is someone who's been doing it for years. He's part of a group called Jail Guitar Doors, which provides musical equipments to help rehabilitate inmates serving time. 

Kramer told more about the organization, and what its like to go into prison to help inmates.