Conor McGregor, the renowned mixed martial artist, has expressed his enthusiasm at the prospect of visiting Celtic Park to watch a game.

When asked if he was keen on visiting Parkhead, he responded, saying, “This is incredible! Hopefully one day for sure!” Alluding to the tifo in the question.
https://twitter.com/TheNotoriousMMA/status/1724829043596358048
His interest in the football club extends beyond being a spectator, as he has previously toyed with the idea of investing in Celtic. However, to date, there hasn’t been any concrete development regarding McGregor’s potential involvement in the ownership or financial aspects of the club.
McGregor’s admiration for Celtic and his interest in possibly attending a match at Celtic Park reflect the broad appeal of the club, known for its passionate fan base and rich history in Scottish football.
While the notion of him buying into the club has been a topic of discussion, it remains speculative at this stage. Nonetheless, his expressed desire to visit Celtic Park underscores the club’s allure to figures well-known outside the traditional footballing world.