Could Led Zeppelin's IV be the rock best album ever? There's not a bad song on it and one iconic one for the ages, 'Stairway to Heaven'. Often referred to as 'ZoSo', which are the symbols on the inner record label, is turning 50 years old this week. It's hard to remember a day when 'Stairway to Heaven' or 'Black Dog' or 'Rock and Roll' wasn't being played on the radio and they still are everyday in some town. Now this album is a staple for every classic rock station in existence because it's now become a part of us. It may not be the best rock album ever but there's no denying it's greatness. https://www.blabbermouth.net/news/led-zeppelins-fourth-studio-album-celebrates-50th-anniversary/