Instruct: Classify Amazon reviews into positive or negative sentiment
Query: meet Ozzy!

Sabbath is the ultimate metal band. I got to see them at Ozzfest 2004, they rocked, but it all started in 1970 with the release of their self titled first album. At the time of it's release there really wasn't anything else like it. No one sounded so dommy or glummy before. Black Sabbath opens the album with sounds of rain, thunder, and church bells so right off the bat we get into the dark subject matter. Second track is the bluesy The Wizard. Perhaps the coolest tune on the album is N.I.B. Black Sabbath is still a classic 34 years after it came about, and the band is still extremely popular after all these years, headling Ozzfest 2004 along side Judas Priest. This album is the beginning of heavy metal!