Lou Pallo and friends

Guitarist Lou Pallo, who worked alongside the late Les Paul for more than four decades, celebrates a new CD, Thank You Les, culled from Iridium's eclectic weekly tribute to the six-string innovator. Announced guests include Arlen Roth, Gene Cornish and Felix Cavaliere, but given that the record features stars on the order of Keith Richards, Billy Gibbons and Slash, we can't help but wonder if any surprise cameos are in store.