This year Eurovision: You Decide broadcasts live from Media City UK in Salford. Once again your hosts are Mel Giedroyc and Måns Zelmerlöw.
Three competing songs will be performed in two different ways, by two different acts.
In the first round, we hear all six performances. Then it's up to a panel (TV presenter Rylan, radio DJ Marvin Humes and girlband singer Molly King) to choose one version of each song for the next round.
We then get to hear their chosen three again and viewers vote to select the next UK Eurovision entry.
SuRie is the special guest performing 'Storm'.
Here are the competing songs
Bigger than us - Paul Rice v Holly Tandy
Written by: Laurell Barker, Anna-Klara Folin, John Lundvik and Jonas Thander
Freaks - Jordan Clark v MAID
Written by: Jon Maguire, Rick Parkhouse, Corey Sanders and George Tizzard
Sweet lies - Kerrie-Anne v Anisa
Written by: Maria Broberg, Lise Cabble and Esben Svane
The show airs on (geoblocked) BBC Two and iPlayer from 7.30pm to 9pm GMT.
Image Credits: BBC.