Young leaders arrive in London
The Mayor welcomes more than 600 future international leaders to London later for the One Young World Summit.
It's happening at Old Billingsgate and over the next 2 days the group - all under 25 - will discuss their role in shaping the planet's future.
Sir Bob Geldof and former UN secretary general Kofi Annan are set to speak.
Recently Played Tracks
On Radio: James Merritt
1am - 6am
Text 'HEART' to 82122
Now playing: The best feel good music