Chuck sang the parts of the character "Planet Smasher" in Planet Smasher.
Disappointingly, Dev didn't do Ziltoid start to finish, there was a gap in the middle. The full setlist was:
Devin Townsend Project (20:30-22:00)
By Your Command
Mountain (I think...)
Planet Smasher (with Chuck Billy)
Colour Your World
4/4 Celebrating Jon Lord