Supercross rider Justin Hill is back in the Freak Nation talking about his music and a recording session in the Seattle area. Hill is one of the top Supercross riders in the world but he spends a few minutes talking with The Freaks about London Bridge Studios and Pearl Jam’s Pearl Jam 10. Talk about a fly on the wall! Then there’s Soundgarden. It’ll take a few minutes to get back to Supercross. Listen…