I've always loved radio jingles, but it wasn't until I saw this YouTube video that I learned how they were actually made. Here's the video description from the production company:
From 1976 to 1997, JAM created all of the station jingles for BBC Radio 2. They were heard by millions of listeners across the UK. Here is some JAM home-video taken during one of the vocal sessions for the 1984 package. The vocals, as well as the music tracks, were recorded at our previous studio on Insurance Lane in Dallas, Texas.
Check it out! Cool stuff.