what about earlier?
 
in late August 1979 (after the Reading Festival) in London: Sting produced the Duggie Campbell 7"  "Enough To Make You Mine"
 
Dietmar
This is my list right now (there may be mistakes and missing tracks):
 
1982 - Artisti vari 'The Secret Policeman's Other Ball; canta 'Roxanne'/'Message in a Bottle'/'I Shall Be Released' (cover)
1982 - Artisti vari 'Party Party' (colonna sonora); canta 'Tutti Frutti'/'Need Your Love So Bad' (cover)
1983 - Will Powers 'Dancing For Mental Health'; 'Adventures in success' scritta in parte da Sting.
1984 - Reflex 'The Politics Of Dancing'; cori in 'How Much Longer'.
1984 - A Bigger Splash; cori in 'I Don't Believe A Word'