Crosby, Stills & Nash and Elvis Costello have joined the line-up for Hard Rock Calling in London.

The event, which takes place in Hyde Park from June 25-27, will also feature Crowded House.

All three acts will join headliner Sir Paul McCartney on the final night of the festival.

Tiffany Page, Lissie, The Coronas and Joe Echo have also been added to the bill.

As previously reported, Pearl Jam will headline the Friday, while Stevie Wonder will top the bill on Saturday.

(by Jason Gregory)