It’s astounding how many different accents can be found within one spoken language. English is spoken in the U.S., Canada, the UK, and Australia, but each country has put their own twist on the sound of it.
Also, within countries, you have several accents from various regions. The southern U.S. speaks differently than the northern part, and certain places like Boston and Brooklyn have distinct accents associated with people who live there.
In the UK, you have what is considered proper English, and then you have the Cockney form. The latter is associated with the working class, while proper English is spoken among the royals and the wealthy.