Motörhea are a British heavy metal band formed in 1975 by bassist, singer and songwriter Lemmy, who has remained the sole constant member. Usually a power trio, Motörhead had particular success in the early 1980s with several successful singles in the UK Top 40 chart. The albums Overkill, its follow on, Bomber, Ace of Spades, and particularly No Sleep 'til Hammersmith, cemented Motörhead's reputation as one of Britain's foremost heavy metal groups. More recent exposure has included providing wrestler Triple H's entrance music, performing live at WrestleMania events, and in 2005 receiving their first Grammy.