The search is on to find London's best busker.

Get Loaded in the Park has teamed up with the Big Issue to run the Big Busk competition as part of the magazine's 20th anniversary celebrations. Indie rockers Razorlight kicked off the Big Busk series of gigs, bringing traffic to a halt near Trafalgar Square on Tuesday.

The band, who headline Sunday's Get Loaded festival, played acoustic versions of some of their biggest hits, including America, Golden Touch and Somewhere Else.

Now they are looking for the capital's best busker who will win an opening slot at Get Loaded on Clapham Common.

The Cribs, the Noisettes, Patrick Wolf and British Sea Power are among the acts performing.

To enter, email a video link, preferably You Tube, to footage of your chosen busker performing along with their contact details. Entries should be sent to competition@locknloadevents.com marked Big Busk by June 7.

Whoever picks the winning busker will also win a pair of tickets to the event.