Obviously we’ve all made accusations of a referee favouring a certain team, but you rarely see them being able to enjoy a game and just supporting a team from the stands.
There was one notable exception a few years ago courtesy of Mike Dean, and he ended up looking even more unhinged than usual as he watched Tranmere Rovers:
Unfortunately this isn’t quite on the same level as it’s just Michael Oliver having a nice time as he’s singing along, but unfortunately his team didn’t get the result so we’ll never know if he would’ve matched Dean in the full time celebrations.