Shortly after the formation of Animotion around this nucleus, lead guitarist Don Kirkpatrick was brought on board, completing the band's most well-known line-up. They released their self-titled debut album in 1984. Released near the end of the year, a single from this album, "Obsession", written by hit songwriter Holly Knight and noted British singer/actor Michael Des Barres (who originally cut the song themselves as "Knight and Des Barres" for the 1983 movie "A Night in Heaven"), became a worldwide success and the band's first US "Billboard" Hot 100 Top Ten single, peaking early the following year. The follow-up single from this album, "Let Him Go", also cracked the US Top 40 after being remixed to sound more like its predecessor.