On August 3rd, 1987, Def Leppard released their fourth studio album, ‘Hysteria’. Little did they know this ground breaking album would go on to sell over 25 million records, produce 7 hit singles and go to #1 on the Billboard Charts. The band’s debut single for the album in the rest of the world and the second single here in the States, “Animal” was also the band’s first hit in their home country of the UK going to #6! Finally, they had UK success. The song was released in the UK on July 20, 1987 and the U.S. in September 1987. “Animal was the second single in the U.S. and did much better than “Women” which had performed poorly on the charts. It went to #19 and cracked the Top 40. The Single I have is the US version with “I Wanna Be Your Hero” as the B-Side while the UK version had “Tear It Down”. My version is also from the Hysteria Singles Box Set.

I’ve read that the song was demoed back in 1984 by Rick Allen with drum parts on an acoustic drum kit prior to his accident. And I read that Phil had originally written the song, but either way the whole band gets the writing credit so it goes to Rick, Phil, Joe Elliott, Rick Savage & Steve Clark. None of the producers that worked on the album could do anything with it and then 2 1/2 years later, a flip switched and the song flowed with the help of producer Robert “John” Mutt Lange. Phil had stated the following…per songfacts.com
“We’d revisit it and I remember we were recording vocals in Paris for something and one day Joe [Elliott] had done this vocal and Mutt Lange had said, ‘Wow, this vocal’s killer. Let’s rewrite the song around that.’ So we did and it was our first English Top 10 single, so it was worth waiting.” Collen credits Lange for taking the song to the next level. “He said, ‘Yeah, this is okay but this can be great.’ That’s always his thing. ‘Yeah, it can be alright and it can be an okay song but we want to make it great.’ And I think we achieved that. Certainly with the album, Hysteria. It had a different kind of response to it than if we had just sat there and released the first draft.”

