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Bob Catley (born 11 September 1947), is the lead singer with British rock band Magnum and a solo artist in his own right. He is widely considered to be one of the best singers in the melodic rock genre, and is known for his rich, distinctive voice and ability to convey emotion. Catley has started his musical career in band Magnum (founded in 1972). Following Magnum's demise in 1995 and the short-lived Hard Rain project, Catley joined up with Ten vocalist and songwriter Gary Hughes to release the album The Tower (1997), shortly followed by the supporting live album Live At The Gods (1997).

Pat Benatar is a four-time Grammy winner with six platinum and four gold albums to her credit as well as such hit singles as "I Need a Lover", "Heartbreaker", "Fire and Ice", "Treat Me Right", "Hit Me With Your Best Shot", "Hell Is For Children", "Shadows of the Night", and "Love Is a Battlefield". Benatar is acknowledged as one of the leading female rock vocalists in the industry. She was born in Greenpoint, Brooklyn, New York, USA, on January 10th 1953, as Patricia Andrzejewski and graduated Lindenhurst High on Long Island in 1971.

There is more than one artist with this name: 1) Petra is a Christian Rock band formed in 1972 by Bob Hartman, Bill Glover, John DeGroff, and Greg Hough. "Petra" means "rock" in NT Greek, making the band name a triple pun. Rising from the jesus music movement, and initially signed to Myrrh Records, they fought to gain acceptance and recognition in a church culture that at the time believed rock music to be off-limits.

There are (at least) three bands with this name: a Canadian classic rock band; a Swedish punk band; and a Medieval/Folk band from Tasmania. Canadian rock band: Harlequin was a Canadian rock band that formed in Winnipeg in 1975 and lasted until the mid-1980s. The original members of Harlequin were vocalist George Belanger, guitarist Glen Willows, keyboard player Gary Golden, drummer David Budzak and bassist Ralph James. Harlequin signed with Epic Records in 1979 and had a string of hit singles in Canada. Their biggest hit single is "Innocence" which topped Canada's charts.