In Pictures: T in the Park

Saturday's line-up featured The Red Hot Chili Peppers, Kaiser Chiefs and Franz Ferdinand on the main stage.

Franz Ferdinand lead singer Alex Kapranos promised fans an "exciting rock and roll show".

He said: "T in the Park is special to us, being a Scottish band. It's a homecoming gig for us and it's the highlight of the festival season."

Sombre note

He added: "The first time we played here was in 2003 and we had an argument with the security guys because they wouldn't believe that we were actually playing.

"We were standing with our guitars saying 'please let us in, we're playing in the wee tent over there'."

Proceedings hit a sombre note on Saturday afternoon when the Scots actor and Lord of the Rings star Billy Boyd took to the stage as part of a protest against international trade law.

Development agency Christian Aid has claimed that IMF and World Bank rules were forcing poor countries to compete against rich ones.

About a dozen drummers took to the stage as part of a bid to set a new world record for the number of drummers playing simultaneously round the country to back the campaign.

Drummers backed the international trade law campaign

Recalling the Make Poverty History March in Edinburgh one year ago, at the time of the G8 summit in Gleneagles, Boyd told the crowd: "250,000 people took to the streets to say, 'it's wrong that a child dies every three seconds from poverty'.

"We all said it was wrong. We need trade justice. It's wrong if we know that we're not getting trade justice."

Tayside Police said the vast majority of festival-goers had behaved themselves, although officers made more than 20 arrests - with six people held in custody for a variety of offences, including theft and breach of the peace.

Health workers said more than 55 festival-goers needed treatment, including several people who cut themselves trying to get into the event by climbing over the perimiter fence.

They were later handed over to security staff.

Tickets for this year's T in the Park sold out in less than an hour, with 20,000 snapped up the day after the 2005 event.

YOUR FESTIVALS Going to T in the Park or Oxegen? Send your views, photos and video

Some 170 acts will have performed on 11 different stages at the two-day event, which is now in its 13th year.

On Sunday, veteran rockers The Who, The Strokes and Arctic Monkeys will be the headline acts.

Many of the bands also star at the Oxegen event in Punchestown, Ireland.

Some 80,000 people are expected at that festival, held at a racecourse west of Dublin.