Luke Black is a Serbian singer-songwriter who represented his country at the Eurovision Song Contest in 2023, the world’s largest live music event, with an audience of over 160 million. Performing his song Samo Mi Se Spava, his set and choreography, with its special effect giant robot, were inspired by the video games he loves. Now based in London, he is redeveloping those ideas from video games and hero films to create a new collection of songs. He tells the BBC's Andrea Kidd why he is going darker with these new songs and how the recent student protests in Serbia have inspired him to write an unusually lyrical ballad. He also talks about his experiences at the Eurovision Song Contest and readjusting to life and work afterwards.