Funnily enough I was going to post asking if anyone had any JAM Fun Radio jingles, as I remember someone mentioning a JAM package they'd had done about 10 years ago (though had never heard any on air)!! I tend to listen to NRJ over there anyway.
Was that cut you posted a custom JAM cut? I can't think of any demos it comes from. However – I *think* Beacon Radio had that cut done, so maybe it WAS demo'd…!?