The Corrs are in London rehearsing for their performance at the Queen's Golden Jubilee concerts on Monday.
The Irish siblings will be performing two songs including The Beatles 'A Long and Winding Road'.
Other acts involved include Ozzy Osbourne, Paul McCartney, Aretha Franklin, Tom Jones, Cliff Richard and S Club 7.
Andrea Corr commented that they were "greatly honoured" to be involved in the Jubilee celebrations.
