Luxembourg returning 31 years after its last participation in 1993.
Despite Sweden hosting, there are no Swedish citizens represented at the contest. Sweden is represented by the Norwegian duo Marcus & Martinus. However, the Irish representative Bambie Thug is of Swedish descent, as their father is from Sweden.
Marks Petra Mede's third time hosting Eurovision Song Contest, following The Eurovision Song Contest (2013) and The Eurovision Song Contest (2016).
Thirty-seven countries are participating in the contest.
The show featured three-time winner for Ireland (1980, 1987 and 1992) Johnny Logan performing the 2012 Swedish winning entry "Euphoria"