ROCK band Idlewild will headline tomorrow's free Picnic at the Parliament event at Holyrood to celebrate the third session of the Scottish Parliament.
The concert gets under way at midday in the landscaped gardens of the parliament after a ceremony with the Queen in the chamber and a "Riding" down the Royal Mile.
Parliament officials said the gardens could accommodate around 5000 people with plenty overspill space in Holyrood Park.
Idlewild, formed in Edinburgh in 1995, are one of Scotland's most successful indie rock bands.
Lead singer Roddy Woomble said: "We are proud to be recognised throughout the world as a Scottish band that have a keen sense of identity, as individuals and as a group of people playing music together.
"After performing in Princes Street Gardens at the launch of the Parliament back in 1999 it's now great to be playing in the grounds of the actual building."
Other acts performing at the event include Salsa Celtica, Blazin' Fiddles, The Red Hot Chilli Pipers and BBC Radio Scotland's Young Traditional Musician of the Year Catriona Watt.
Presiding Officer Alex Fergusson said: "Idlewild are the ideal way to end this day of celebration for Scotland and allows everyone, including the Parliament, to let their hair down.
"Music has always played an important part of our culture and Idlewild are a perfect example of a great achievement by a modern local band."
• Picnic at the Parliament will be broadcast live on the internet at www.scottish.parliament.uk.