A men’s cycle race has a King Of The Mountains - theoretically the best climber, judged by success in leading over the climbs. Unsurprisingly, women’s cycling has a Queen Of The Mountains. However, in both men’s and women’s stage races (ie, races with multiple stages over multiple days, like the Tour De France), there is a Queen Stage - the one which is (by general consensus) the most difficult climbing day.
In France, it’s traditional to mark the Epiphany with a galette des rois. If you get the slice with the bean or token in it, you get to be “king” or “queen”
The King Cake tradition continues with many here in the US. The cake may have a silver dollar or similar item as a prize to be kept by a child who discovers it, or an adult who is expected to use the prize next year as it becomes their responsibility to make the next cake.
I don’t think I have seen anyone mention that “Titanic” movie (which was probably King of the Box Office for several years) where Leo DiCaprio is hanging off the front of the boat shouting “I’m King of the World!”