Switch Title and Artist

I have a number of tags with the Artist in the Title field and vice versa.
Is there an easy way to switch them?

Thanks

make an action group of the following two actions:
1.
format tag-field: "ARTIST": %title% - %artist%
2.
import tag-field: "%artist%": "artist% - %title%

Excellent...Thanks

Very easy. See: /t/967/1