[3] In 1980 after Hello Sailor, Lyon formed Coup D'État with Jan Preston, Neil Hannan and Steve Osborne (who was replaced by Paul Dunningham after a short time).

Coup D'etat were awarded the 1981 RIANZ Single of the Year for "Dr I Like Your Medicine".

He appeared in the feature film Should I Be Good in 1984, playing Nat Goodman, a former drug dealer just released from prison.

Hello Sailor reformed for the opening of the renovated Gluepot in 1985 and, following the success of the performances, began touring again.

Lyon has an MCPA (Hons) (Master of Creative & Performing Arts) from the University of Auckland and is currently Director of MAINZ (Music and Audio Institute of New Zealand).