The final four will sing two songs each for the semi-final.
Metronomy and Toots & The Maytals both added to the line-up.
Damien Chazelle’s musical favourite releases a new behind the scenes featurette.
Ore Oduba and Lesley Joseph have also been added to the line-up.
Cast your vote and let us know which is your favourite.
Coming in 2017.