Zoe Ball hosts as 14 of the nation's most talented musical theatre hopefuls head off to gorgeous Greece to compete to become Sophie and Sky in a West End production of Mamma Mia!

It's all about the girls as the seven Sophie wannabes take centre stage. Host Zoe Ball reveals a very special surprise from a Hollywood A-lister and star of the Mamma Mia! films.

It's the boys' turn to shine in sunny Greece this time as our seven Skys attempt to prove to the judges that they have got what it takes to be a leading man in London's West End.

Judges Alan Carr, Jessie Ware, Samantha Barks and Amber Riley pair up our Sophies and Skys for the very first time, and there is some shock elimination news for the performers.

It's Choreography Week and judges Alan Carr, Jessie Ware, Samantha Barks and Amber Riley give ten remaining West End hopefuls five different dance routines to learn in 24 hours.

Zoe Ball hosts as the judges are joined by West End legend and Mamma Mia! leading lady Mazz Murray, and there is also a very special message from a star of the Mamma Mia! films.

It's the semi-final, but only four of the six remaining hopefuls can go through to the final. This week, they get advice from a singing sensation and star of the Mamma Mia! films.