Liz Ramanand, Loudwire – Lamb of God ‘s Randy Blythe has returned home to the U.S. after visiting the Czech prison where he was detained. [ Loudwire ] – Black Sabbath are giving fans their first look inside the studio of their ’13′ album sessions with a video teaser. [ Loudwire ] – Guns N’ Roses , Alice in Chains + Korn have signed on to headline the 2013 Rocklahoma Festival. [ Loudwire ] – Maynard James Keenan provides an update on the progress of new Tool and A Perfect Circle records. [ Loudwire ] – Down will hit the road for a brief May trek through the Southeastern U.S. [ Loudwire ] – Get in a romantic mood by joining Ultimate Classic Rock in counting down the Top 10 Led Zeppelin Love Songs. [ Ultimate Classic Rock ] – Roger Waters is adding a new song to ‘The Wall’ concert production. [ Ultimate Classic Rock ] – Radiohead has booked time in September to begin work on their next studio album. [ Diffuser.fm ] – Kings of Leon , My Morning Jacket ‘s Jim James and The Shins are among the top acts performing at the 2013 Hangout Festival. [ Diffuser.fm ]