To mark the occasion of these two odd (and awful) bedfellows teaming up for a co-headlining jaunt arounf the UK, let's talk about memorable co-headlining tours of the past. I'll start.....

Extra points for mentioning tours where one band went massive and the other faded into obscurity....

Coldplay/Terris tour circa 99/2000
Oasis/Whiteout tour (Early 1994)
Kasabian/Chikinki (2004?)