remove eveything after a certain word?

Examples:

U2 Featuring Lou Reed
Kanye West Featuring Jamie Foxx

How do I keep U2 and Kanye West and delete the rest, I guess using "Featuring" as a keyword

Have a bunch of files tagged in this manner, wanna clean them up for last.fm

Create an action of the type "Replace with regular expression" for the field that you want to truncate.
Enter as search string:
(.) .eatur.
enter as replace string
$1

Thanks!