The final day of Scotland's biggest festival has begun under blue skies and sunshine.

Thousands of T in the Park revellers are expected to enjoy a third day of performances by internationally acclaimed acts at Balado airfield in Kinross-shire.

Scheduled to entertain the crowds today are Ocean Colour Scene, David Guetta, Foals, Rita Ora and Chvrches.

Taking to the main stage tonight to close the event will be The Killers, who follow other T in the Park veterans the Stereophonics.

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With temperatures expected in the region of 21C, organisers have encouraged festival-goers to use sunscreen and keep hydrated.

Neil Gilles from the medical services team said: "We've had 850 people present to the medical tent, mostly due to people not keeping themselves hydrated, not using sunscreen and forgetting their own medicines. There is plenty of free water on-site and we'd like fans to be making the most of that. It's simple advice, but it's crucial in weather as lovely as this."

There have been 57 arrests made but police have praised the general good behaviour of the crowd.

Superintendent Rick Dunkerley, said: "The general conduct throughout the weekend has been very positive. There have been 57 arrests in total made since the campsite opened on Thursday, and the case remains that these are mainly for petty crimes and minor drugs offences. Our message hasn't changed: look after yourself, look after your friends, look after your belongings and enjoy a great weekend."

Last night thousands of people flocked to the main stage to watch R&B singer Rihanna headline with hits Umbrella, We Found Love and Don't the Music.

The party continued in the campsite area until 2am, with DJs taking to the decks at the event's Arcadia Afterburner.

Festival director Geoff Ellis said: "It's been an incredible year, what a way to celebrate our 20th. The line-up today again reflects the diversity of acts we've enjoyed all weekend. From Rita Ora, to Earth Wind and Fire, Azealia Banks to Labrinth, the programme's been jam-packed and fans are loving it."