Justin Timberlake, Jessica Biel break up -- or do they?

jessicabiel_justintimberlake_290.jpgJustin Timberlake and Jessica Biel have split up after three years as a couple. Maybe.

That's the word from Us Weekly, anyway, which has the breakup story on its cover this week. The magazine reports that Timberlake ended the relationship via a phone call and has been telling friends that "it's over."

Us cites a "mutual pal" of Timberlake and Biel, who began dating after he broke up with Cameron Diaz and she split from Chris Evans, as saying their relationship ended about a month ago and that Timberlake is already "on the hunt." The same friend claims that Biel is in "severe denial" about the breakup and is refusing to accept it.

Meanwhile, though, our pal Elizabeth Snead at The Dish Rag reports that she saw the pair having brunch together Sunday at the San Ysidro Ranch hotel in Santa Barbara. As they left the restaurant, he had his arm around her waist.

A rep for Biel but couldn't be reached for comment.

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