Complex sentence: Keyboard player Rick Holliday left in 1983 to form Six Sed Red with Soft Cell associate Cindy Ecstasy and their biggest success was having their song "Dream Baby" covered by Bananarama on their eponymous 1984 LP.
Split into simpler sentences: Keyboard player Rick Holliday left in 1983 to form Six Sed Red with Soft Cell associate Cindy Ecstasy. Their biggest success was having their song "Dream Baby" covered by Bananarama on their eponymous 1984 LP.