Lion were an English-American
rock band, best known for their theme song from the 1986 animated
movie The Transformers: The Movie.

A hard rock quartet, Lion (originally named Lyon) were formed in
Los Angeles in 1983 after ex-Tytan vocalist Kal Swan (born Norman
Swan) and former Lone Star guitarist Tony Smith relocated from
Great Britain and teamed up with bassist Alex Campbell and drummer
Mark Edwards, who had been in Steeler alongside Yngwie Malmsteen,
and Third Stage Alert. After beginning work on a demo, Swan and
Edwards recruited guitarist Doug Aldrich and bassist Jerry Best
(both of whom had previously recorded with the band Mansfield) to
complete the Lion line-up, and in 1984 the group made its recorded
debut with «Love Is a Lie», a song on the Friday the 13th Part 4
soundtrack. In 1986, Lion returned with Power Love, a six-song EP
released only in Japan.

After recording the title for the Transformers animated film, they
signed to Scotti Brothers and released their first full-length
album, 1987’s Dangerous Attraction. Their next record, Trouble in
Angel City, was released on the Grand Slamm label in 1989. It
contained re-recordings of the Power Love EP songs, a cover of the
Slade song «Lock Up Your Daughters», and several new tracks.

In September of that year, Edwards suffered a broken neck after
falling off a cliff while competing in a motorcycle race. Lion
disbanded a month later, with Swan and Aldrich later teaming up in
Bad Moon Rising along with former Hericane Alice members Jackie
Ramos and Ian Mayo. Aldrich also recorded with Hurricane, House of
Lords, Burning Rain, Dio and Whitesnake. Jerry Best would later
re-appear in Freak Of Nature, featuring former White Lion vocalist
Mike Tramp; he also briefly toured with Dio in the late 1990s.