Robbie Williams will perform at Queen Elizabeth's Diamond Jubilee concert.
The Angels hitmaker is "excited and honoured" to join the line-up for the show - which is being organised by his Take That bandmate Gary Barlow - alongside stars including Sir Paul McCartney, Sir Elton John, Sir Tom Jones and Sir Cliff Richard.
Robbie - who lives in Los Angeles with pregnant wife Ayda Field - joked: "I am excited to be in London for the celebrations and honoured to be part of this line-up.
"If this doesn't get me a knighthood, nothing will. I can't wait for the show."
Robbie's addition to the concert - which will take place outside Buckingham Palace on 4 June - has delighted organisers because of his universal appeal.
A source told the Daily Mirror: "Getting Robbie is a major catch for the concert - he's a huge star and massively popular with fans of all ages.
"This show is going to be the centrepiece of the Queen's celebrations, and Robbie is a proper showman."
Other acts performing at the concert - which will be broadcast live on BBC1 and BBC Radio 2 - include JLS, Ed Sheeran and Dame Shirley Bassey.