Overview:Veteran rockers Queen dusted off some rarely performed songs when they headlined a charity concert in London in aid of the Prince's Trust. Brian May and Roger Taylor performed It's a Hard Life with Keane's frontman Tom Chaplin at the first Prince's Trust Rock Gala in more than 20 years. The Prince of Wales and the Duchess of Cornwall attended the gig at the Royal Albert Hall on Wednesday. It was their first public event since Prince William revealed his engagement. Other performers at the concert included Phil Collins, Eric Clapton, Tom Jones and Paloma Faith. 1. Queen - These Are The Days Of Our Lives. 2. Queen - Last Horizon 3. Queen with Tom Chaplin - It's a Hard Life 4. Queen with Midge Ure - Seven Seas of Rhye 5. Queen - We Will Rock You (Jam)