All of you University of Arizona alumni (bear down) and Laker fans can breathe a sigh of relief, Luke Walton is not dating Britney Spears. The rep for Walton has set the record straight and wants to point out that he has a girlfriend. Ok Kids, who's the next lucky contestant to have his name dragged through the mud by being connected to Britney Spears? As for the girlfriend thing, I think any wife or girlfriend of an NBA star will tell you, there is never only one.