If you're writing a song for Eurovision, you must avoid commercial references, political references, and offensive references. I'm not sure whether the quote from today's song would count.
It's definitely a bold claim. That you know beyond doubt that someone is the bride of beelzebub is quite striking. Of course, the girl in question isn't really a witch. She's a beguiling enchantress that can get what she wants, and what she wants is the love of her life. Birthday girl Monica Aspelund sang in Finnish and recorded her song in several other languages. She finished 10 and at one point she was leading. How many Finns can make that claim?
Monica is 72 today.
Hyvää syntymäpäivää, Monica!