It's chemistry week on Mamma Mia! I Have a Dream, as judges Alan Carr, Jessie Ware, Samantha Barks and Amber Riley pair up our Sophies and Skys for the very first time. 

Sparks fly, in more ways than one, as our couples get cosy in this week's workshop where they perform the iconic love scene from the stage show, Lay All Your Love On Me.

And as ever, the local Greek audience will be treated to six show-stopping performances, but who will host Zoe Ball be consoling elimination.

Hosted by Zoe Ball, this week on Mamma Mia! I Have a Dream the judges are joined by West End legend and Mamma Mia! leading lady, Mazz Murray.

With a personality as big as her talent, Mazz is the perfect person to help the judges decide who's got what it takes to star alongside her, taking on the role of her daughter and son-in-law in London's West End. Plus there's a very special message from a Hollywood favourite.

But which of our Sophies and Skys will take their chance with both hands, and make it through to next week's all important semi-final?