Does anyone know, is Gunther a drag king?

Really random question. Years ago, I found this music video (NSFW) and ever since, I have been convinced that Gunther is a drag king. I did a Google search on it and I can’t find anything that says he is, everything refers to Gunther as a “he”.

However, there was something in a newspaper that makes me wonder.. it said ”OK, drag kings this one’s for you! Just ripe with tongue wedgied into cheeks for seriously campy fun, Swedish musician, club owner and uber-sexy man Mats Söderlund aka Günther rocks his mullet and smoky sunglasses like a Las Vegas shark to the point he’s infectiously fun and dorky on a superhuman level with a gaggle of “Sunshine girls”literally bouncing off his every word.”

So, I’m wondering if anyone knows conclusively if Gunther is biologically male or if he’s a drag king?