I saw Trudeau march in Toronto pride circa 2017. Probably the biggest 'celebrity' I've seen in person. He had a popemobile of 8-10 huge security dudes around him trying to look as plain-clothed as possible (as cops, not paraders) with huge duffel bags around their shoulders (rifles). It was cool to see him there, I understood the security, but I also got a bit of a chuckle out of the security trying to conceal themselves as people who happened to be in a parade but seemed oblivious to it - against him in a colourful shirt smiling and waving at everyone