Franz Ferdinand, Lily Allen and Keane are among the latest names to have been added to the line-up for this year�s T in the Park. (With video)

Franz Ferdinand, Lily Allen and Keane are among the latest names to have been added to the line-up for this year's T in the Park.

The organisers of the music festival announced yesterday that Paolo Nutini, Bloc Party and Manic Street Preachers would also perform at the three-day event, which takes place on July 10-12 at Balado in Kinross-shire.

They join previously announced headliners The Killers, Kings of Leon, Blur and Snow Patrol. More acts are expected to be unveiled over the next few months.

The line-up showcases a mixture of seasoned acts and relatively new bands.

Influential ska outfit The Specials will celebrate their 30th anniversary with a performance at T in the Park, while pop veterans Squeeze have also been confirmed to play.

Fears have been raised that music festivals will be the next victims of the global economic slowdown. Already this year, the Hydro Connect festival in Argyllshire and Live at Loch Lomond have been cancelled.

But yesterday, T in the Park organiser Geoff Ellis declared it was "business as usual" for the popular event.

Ticket prices are rising by 6% on last year but Mr Ellis said the increase was necessary to cover rising costs.

He said: "For us, the fact that there's a credit crunch doesn't make that much difference. The cost of doing the event goes up each year.

"With the weak pound, it's been more expensive to book American artists, because they want the same money that they would normally be earning in dollars.

"The increase in talent spend means the extra money from ticket sales will be more than swallowed up.

"Also, half of this year's tickets were sold last year, at 2008 prices."

George Kyle, Tennent's head of sponsorship, said that despite companies reviewing their sponsorship commitments as a result of the credit crunch, its relationship with the festival was secure.

Tennent's have been associated with T in the Park since it began in 1994, and currently have a five-year deal lasting until 2011.

Mr Kyle said: "There is nothing that would change our relationship with T in the Park. It is a Scottish global success story, and I don't think partnerships come stronger than ours."

More tickets go on sale at 9am on Friday. A weekend ticket with camping will cost £170, with day tickets costing £72.50.