After the Diamond Jubilee Concert, Kylie Minogue and Gary Barlow accompanied the Queen on a backstage tour as she met some of the stars that performed or hosted at the event.
They included Peter Kay, Ed Sheeran, Will.i.am, Cheryl Cole and Grace Jones among others.
Picnickers are enjoying a Heston Blumenthal feast in the Buckingham Palace Gardens before the Diamond Jubilee concert.
The Queen watched a star-studded Diamond Jubilee Concert outside Buckingham Palace on Sunday evening.
Here are some of the best pictures from the Diamond Jubilee River Pageant.