By Adam B. Vary
Updated April 25, 2009 at 09:34 PM EDT

Storied Hollywood agency William Morris and (relatively) young agency Endeavor are in the final stages of planning a merger and have settled on a new name, reports Deadline Hollywood Daily and Variety. The merger should be finalized early next week, and will most likely be called WME Entertainment. William Morris’ clients include Mel Gibson, Quentin Tarantino, and Britney Spears. Endeavor — founded by Ari Emanuel, the inspiration for Entourage‘s Ari Gold — reps high-profile clients like Robert Pattinson, Hugh Jackman, and Christian Bale.