I was going to upload the songs I have which were written by Jon for other artists (but obviously couldn't as they are official releases). Instead I'll give you the names of the songs I know:

Stevie Nicks - Sometimes It's A Bitch
Loverboy - Notorious

Both of the above songs are good! Especially Notoriois. It would sound great with Jon singing it. Maybe we will on the boxset...

Anyone know anymore written by Jon and Richie?

Jack