PINK @ London's Trafalgar Square T-Mobile ad 2009

Pink makes surprise appearance in London's Trafalgar Square

T-Mobile Event @ Trafalgar Square - "So What" - PINK

Extinction Rebellion protestors set up camp in London's Trafalgar Square

Police shut down Extinction Rebellion protest in London's Trafalgar Square

Extinction Rebellion protesters clash with police as tents get dismantled at London's Trafalgar Square

London's Trafalgar Square near-empty for silence to mark VE Day

London's Trafalgar Square (1890)

Extinction Rebellion defy police ban to occupy London's Trafalgar Square again, despite polarising tube protest

Giant lion sculpture 'roars' poetry in London's Trafalgar Square

Norwegian tree lights up London's Trafalgar Square

Air Ambulance helicopter lands in London's Trafalgar Square

Air Ambulance helicopter lands in London's Trafalgar Square

London's Trafalgar Square Fourth Plinth whipped cream, drone and fly sculpture unveiled

'Big blue bird' unveiled in London's Trafalgar Square

Anti-Trump protesters gather outside London's Trafalgar Square

London's Trafalgar Square fountains continue to freeze over

Horse skeleton statue unveiled in London's Trafalgar Square

Fallen on hard times? Pikachu seen begging in London's Trafalgar Square

London's 'most ridiculed' Christmas tree is switched on in Trafalgar Square

Drone footage shows view from the top of Nelson's colum in London’s Trafalgar Square

London's Trafalgar Square Christmas tree lights up

Vegan activists Animal Rebellion stage protests in London’s Trafalgar Square

Extinction Rebellion paints Trafalgar Square pink at the Carnival of Corruption

T-Mobile Sing-along Trafalgar Square

T-Mobile Sing-along Trafalgar Square - Tiz1All