Delete text (inbetween brackets)

I can't find a way to solve my "problem":

Artist - Title (radio edit)

I want to find a way to delete everything after "title". So the text inbetween the brackets should be deleted.

What is the best way to do this?

Try this:

Regular expression:

It's almost perfect!
When I do that, I get this:
Artist - Title (
The first bracket doesn't delete.

Opps. I've edited the previous post

That works, thanks a lot!