Coldplay will follow some of music's biggest acts today when they perform on the world's biggest stage - the Super Bowl half-time show.

"Everyone who does this show knows that it is the biggest honour, the biggest privilege and they put their life and soul into it," frontman Chris Martin said.

"We watched all the other half-time shows many times and most of them are fantastic.

"We are going to try and celebrate those other years and hopefully make a show as memorable as some of our favourites.

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"We spoke to each other about what we would like to communicate in the half-time show and we decided we wanted to make it about togetherness and acceptance, the things we really believe in, and then we called the right guests."

The Super Bowl show has included some of rock music's most iconic acts, including Bruce Springsteen, Paul McCartney, Prince, U2, the Rolling Stones, The Who and Beyonce, who will be back on the Super Bowl stage for a second time today.

While Super Bowl half-times once featured marching bands as entertainment, the show has grown into a standalone mega-event that rivals the game itself.

The Coldplay press conference attracted the biggest media mob of Super Bowl week as the British band faced a wall of over 100 television cameras and hundreds of reporters.

The questions were offbeat, one person asking for a hug and another requesting to audition for the gig before flying into a brief saxophone solo, while another explained to the band how they had helped her through a bad break-up in 2004.