"It's the most un-rock 'n' roll thing you could do, so I never ever talked about it, but that was actually my obsession before rock-and-roll."
- Bono, on playing chess
During the ZooTV Tour, U2 wanted to play a show in Sarajevo. Due to logistical problems they couldn't play there during that tour so instead they created a video uplink to Sarajevo during most ZooTV shows. On the Popmart Tour, they played their first (and so far only) show in Sarajevo, finally fulfilling that vision.