There's versus there are

Millions of competent English speakers - from BBC newsreaders and top American politicians, to university lecturers and teachers - make this common grammatical mistake, particularly when speaking. They say there's instead of there are (or there're).

There's people from all over the world here or there's 15 apples in the basket are examples of this type of error that even astute English speakers may let slip.

It's a question of singular or plural

There's is short for there is and should only be used when referring to one thing.
"There is a slice of cake."
"There is my friend."

There are (or there're) is correct if referring to objects in plural.
"There are people from all over the world here."
"There are 15 apples in the basket."

Note: There's can also be short for there has.
"There's been a two-fold increase in staff."

Once you are aware of this, you may be surprised just how many English speakers use there's incorrectly in everyday communication.

Now you won't be one of them.