Series 18

Performing for the judges this week are prehistoric rockers Heavysaurus, dancer Binita Chetry, singing sensation Stacey, and more surprises along the way.

The nation's most beloved talent competition continues with more thrilling acts performing for Simon Cowell, Amanda Holden, Alesha Dixon, Bruno Tonioli guest judge KSI.

The nation's most beloved talent competition continues with more top-quality acts performing for Simon Cowell, Amanda Holden, Alesha Dixon, Bruno Tonioli and guest judge KSI.

The nation's most beloved talent competition continues with even more top-quality acts performing for Simon Cowell, Amanda Holden, Alesha Dixon, Bruno Tonioli and guest judge KSI.

The nation's most beloved talent competition continues with a fresh group of acts performing for Simon Cowell, Amanda Holden, Alesha Dixon, Bruno Tonioli and guest judge KSI.

The nation's most beloved talent competition continues with a new group of acts performing for Simon Cowell, Amanda Holden, Alesha Dixon, Bruno Tonioli and guest judge KSI.

The nation's most beloved talent competition continues with a new group of acts performing for Simon Cowell, Amanda Holden, Alesha Dixon, Bruno Tonioli and guest judge KSI.

It's the semi-finals and the first eight acts who impressed the judges during the audition stages perform for their lives!

It's the second round of the semi-finals! The next eight acts who made it through the audition rounds perform like their lives depend on it!