On-stage and in the dressing rooms though, things are stricter. EBU, which runs the contest itself, has stuck to its rules saying performers can only bring their own national flags onstage or into the green rooms. This means that they will not be able to fly the Pride flag or that of any other gender identity or sexuality.
Fans, however, will be able to bring whatever flags they like into the arena.
Last year Swiss winner Nemo did wave a non-binary flag during the performance, but said they had to 'smuggle' the flag in. This year LGBTQ+ groups say they are disappointed the EBU has not relaxed the rules.
"Banning our symbols is a slap in the face for the LGBTIQ community', said Swiss group Pink Cross. "It sends the wrong message at a time when queer communities across Europe are facing increasing hostility."
EBU has said that the guidelines were designed to create clarity and balance explaining: "Eurovision needs no flag to demonstrate its alliance and celebration of the LGBTQ+ community."
Across the Atlantic, Donald Trump's administration is actively removing government support for diversity and inclusion measures, and he is asking partnered European institutions (including some Swiss universities) to do the same.
That's why Basel, says Mr Cramer, should take a stand, even if the EBU will not.
"These are our European values. People and nations are coming together in a friendly championship. Whoever you are, if you are young, if you are not that young, if you are straight, if you are gay, if you are female, male, or if you are non-binary, this is all perfectly fine. And I think this is not just what Basel stands for, this is what Europe should stand for."
So if everyone is welcome, how do they get there? The host country being Switzerland, punctual transport is catered for. Swiss railways is laying on hundreds of extra trains. In Basel, the trams will run 24 hours a day.
And, for those who are really in Eurovision mode, there is even a karaoke tram, where passengers can take a free 90-minute journey right across town, all the while singing their hearts out.