Nemo, Käärijä and Katrina all feature in a special concert ahead of May’s finals. Plus: The Traitors US reaches its gripping conclusion. Here’s what to watch this evening

11.40pm, BBC One
The Eurovision song contest final takes place in Switzerland on 17 May, so of course we are already warming up for it with this celebratory concert in Amsterdam to kick off the competition. Edsilia Rombley and the Drag Race UK star Tia Kofi host a night of interviews and performances with Eurovision royalty including Loreen, Nemo, Käärijä, Katrina (minus her Waves) and Baby Lasagna. Hollie Richardson