Kaiser Chiefs, James Join Hard Rock Calling Festival 2011 Line-Up

Kaiser Chiefs and James have been added to the line-up for this year's Hard Rock Calling festival in London.

Both acts will perform on the opening day of the event, which takes place from June 24-26 in Hyde Park.

Other acts added to the bill include Black Cards – the side-project of Fall Out Boy's Pete Wentz – and Vintage Trouble.

Hard Rock Calling will be headlined by The Killers, Bon Jovi and Rod Stewart, while Stevie Nicks is also on the line-up. Adam Ant & The Good and Mike & The Mechanics are also on the bill.

Tickets are on sale now. For more details and to buy Hard Rock Calling tickets, check out Gigwise Gig Tickets.

For more details and to buy Hard Rock Calling festival tickets, check out the Gigwise Festival Guide.

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