Kiss and Guns N' Roses guitarists team for 'Origins Vol. 1'
Band hasn't released a studio LP in nearly 30 years
'The Boys Are Back in Town' played at RNC when Paul Ryan took the stage
Sweat to Rob's playlist of summer songs, from "Summertime Blues" to "Call Me Maybe"
Hammett: 'The opening lick of the guitar solo of 'Master of Puppets' is a variation of a lick that Gary Moore played a lot'