Beer festival

After a Beer Festival in London, all the brewery presidents decided to go out for a beer.

Corona's president sits down and says "Señor, I would like the world's best beer, a Corona". The bartender takes a bottle from the shelf and gives it to him.

Then Budweiser's president says "I'd like the best beer in the world, give me 'The King Of Beers', a Budweiser". The bartender gives him one.

Coors' president says "I'd like the best beer in the world, the only one made with Rocky Mountain spring water, give me a Coors". He gets it.

The guy from Guinness sits down and says "Give me a Coke".

The other brewery presidents look over at him and ask "Why aren't you drinking a Guinness?" and the Guinness president replies "Well,

Spoiler:

if you guys aren't drinking beer, neither will I"