Tim Wheeler helps out his pals on the last date of their North American tour...

COLDPLAY were joined onstage by ASH star TIM WHEELER on the last date of their North American tour.

Coldplayand Ash have been touring North America together throughout September.

The bands, who are friends, have been inseparable throughout and even formed a supergroup at the Echo Lounge in Atlanta during a tour break, playing cover versions until the early hours.

At the final show of the tour at the Chicago UIC Pavillion (September 24), Ash singer Tim Wheeler appeared onstage for their forthcoming single ‘The Scientist’, playing guitar and singing backing vocals.

Coldplay are now on route to the UK, where they play a tour next month. For tickets call the NME Ticketline on 0870 1 663 663, or [url=]click here.