It's Day 12 of 20 Albums in 20 Days! Today's feature is Led Zeppelin IV or as some fans call it, Zoso. It has shown up on countless lists of the greatest albums and includes their most familiar songs; Black Dog, Going to California, Rock and Roll, and arguably the best rock song ever, Stairway to Heaven. I'll giveaway a copy on vinyl today 2:30 when we play Name That Zep Tune. 20 Albums in 20 Days...we're not only playing everything on the record, we're giving it away!