These are some songs that Jon or Jon and Richie had a hand in either co-writing, producing, or performing with other artists.
Sometimes It's a Bitch, Stevie Nicks (Jon)
Kiss the Bastards, Saints & Sinners (Jon--Snake Sabo is another one of the songwriters)
Yeah, Eddie Murphy (Jon and Richie both "sing")
The Story of Love, Ted Nugent (Jon & Richie)
Notorious, Loverboy (Jon & Richie)
Peace in Our Time, Gorky Park (Jon & Richie)
Evidence, Emerson Drive (Jon & Richie)
Born Again, Big & Rich (Jon & Richie)
Can't Be Satisfied, Big & Rich (Jon & Rich)
Orbital, Halcyon On and On (Jon & Richie)
So Close, Hall & Oates (Jon produced)
Bang Bang, Cher (Jon & Richie produced, band played)
We All Sleep Alone, Cher (Jon & Richie wrote, produced, band played)
Does Anybody Really Fall in Love Anymore, Cher (Jon & Richie)
Hell is Living Without You, Alice Cooper (Jon & Richie)
Trash, Alice Cooper (Jon guests)
couldn't find an album version on youtube
Heads I Win, RATT (Jon sings background)
House of Cards, Rockhead (Jon, Richie)
All I Wanted Was You, Billy Hoffman (Jon)
--can only find the karaoke version
Bang a Drum, Chris LeDoux (Jon)
Wanted Dead or Alive, Montgomery Gentry (Jon & Richie)