When Nicky Moore (vocals/keyboards) and John McCoy (ex-Gillian; bass) recruited Big Mac Baker (guitar) and Tubby' Vinny Reed (drums/percussion) they formed what they thought would be an alternative Hard Rock act to the party boys that they thought were dominating the mid 1980s charts. As useless as that proposal seemed it might have held some novelty appeal if it wasn't for the fact that the act never really made it from the get-go. Almost from their inception they were embroiled with a long-lasting dispute with their record label Jive'. When their eponymous debut album was finally released in 1989 any noveltyappeal they may have had wore off, despite the album featuring humable tracks like Fat Man and All The Days, but after it's release the act went as extinct as their namesake.
Footnote: The name Mammoth has been passed around many times through Heavy Metal history and this act should not be confused with either Van Halen's original name or another occurrence of the name in the 1970s.