Britain's Got Talent is gearing up to dazzle us with its fresh new series. This year's contestants will hope to follow in the footsteps of previous winners Paul Potts, Diversity and Sydnie Christmas as they chase their dreams to perform at the Royal Variety Show and win the huge cash prize.

For season 18 of the hit ITV show, viewers will yet again be joined by our beloved hosts Ant McPartlin and Declan Donnelly.

The official teaser shows exciting acts set to take to the stage for the upcoming series. As the teaser begins Declan Donnelly can be heard saying: "Please take your seats, the show is about to start."

Acts in the teaser include a dummer who is seen with paint splashing on their drum set while the symbols are on fire, a dance act performing a huge flip, a pole dancer dressed as a seagull and a magician with his hand set on fire.

Along with a woman standing on stilts while flicking plates onto her head. The teaser ends with Ant McPartlin announcing: "It's showtime."

When does BGT start and what channel is it on?

The eagerly awaited brand-new series of Britain's Got Talent is all set to hit screens on ITV1, STV and ITVX at 7pm every Saturday evening, with the first episode this Saturday, February 23.

In previous years the semi-finals would air every day in one week, however this year it is believed every semi-final will air on a Saturday, meaning season 18 will be the longest series ever.

Who are the judges on BGT this year?

The usual Britain's Got Talent judges will be making a comeback as Simon Cowell, Amanda Holden, Alesha Dixon and Bruno Tonioli reunite on the famous judging panel.

YouTube star and rapper KSI will also be a guest judge for a number of weeks as he is set to fill in for Bruno, who was unable to attend a number of the auditions due to other work commitments.

Speaking about taking on the role of guest judge, KSI said: "I'm so excited to be a guest judge for BGT. When I got the call up, I couldn't believe it. I remember watching old BGT episodes and going from being amazed to laughing my a*** off. I'm buzzing to see all the fresh new talent, and I'll be sure to leave a mark."

Britain's Got Talent returns to ITV this Saturday at 7pm.