Kaiser Chiefs, Kasabian, The Charlatans and Guns N' Roses are to support the Rolling Stones on their European tour.

The band kick off with a gig in Barcelona on May 27 although there are fears guitarist Keith Richards may not be well enough to join them. Richards is believed to have undergone surgery to drill his skull and drain blood from his brain after suffering a haemorrhage when he fell out of a palm tree in Fiji.

The Stones will play more than 20 countries for the European leg of their Bigger Bang tour.

Kaiser Chiefs will open for the band in Croatia, Kasabian in Switzerland and France, and Guns N'Roses in Germany.

The Charlatans will play the second Twickenham date on August 22 and Glasgow's Hampden Park on August 25.

Further support acts are to be announced.