UK hit talent show The X Factor took a further Eurovision twist this week as Bjorn Ulvaeus joined the hopeful contenders for an Abba masterclass! He joined the remaining hopefuls to give his opinions and offer his experience and advise.

The show, which divides contenders into a younger group, an older group and a group for more than one singer and bands sees all the contenders performing an Abba song on tonight's show as they sing for survival and move a step closer to the grand final. Benny and Bjorn are expected to appear on the show The contenders are listed below along with the songs that they will be performing:

The MacDonald Brothers – Fernando
Eton Road – Does Your Mother Know?
Ben – S.O.S
Robert – Take a Chance On Me
Ashley – The Winner Takes It All
Nikitta – Dancing Queen
Leona – Chiquitita
Ray – Waterloo