Allen is best known for his work with East of Eden, Snowy White, Bonnie Tyler, Mick Taylor and Van Morrison.
He is not to be confused, although in many listings often is, with the similarly named former drummer with the British glam rock outfit, Hello, whose brother is Ultravox's Chris Cross.
In the early 1980s, working as a freelance session musician, Allen played on albums recorded by Bonnie Tyler (Goodbye to the Island), Murray Head (Voices) and John Martyn (Well Kept Secret).
[3] In 1986, Allen joined Snowy White's Blues Agency,[4] and drummed on their 1988 album, Change My Life.
Most recent duties include party planning for the Brunei Royal Family in London, which led to his appointment as executive producer of music concerts for Sensible Music, London..[5] Through his drumming duties with various musicians over the years, Allen's work appears on numerous compilation albums.