Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Essential piece to the collection

For an avid Led-Zeppelin collector such as myself, I would scoop up anything that bears the name Led-Zeppelin. This single is no different than the original vinyl 45 of "The Immigrant Song"/"Hey Hey What Can I Do", that was available in the USA. The 45, just a factoid, has "Do What Thou Wilt" in the trail off on side 1, and "Shall Be The Whole Of The Law" in the trail off on side 2. Of course, a reference to Page's so called paganist lifestyle. The only reason this didn't get 5 stars is because it's really nothing new. But it is a good piece for the collection.