PWentz072208_01_X17.jpgPete Wentz PWentz072208_18_X17.jpg John Mayer's relationship to Jessica Simpson may be a thing of the distant past - but his relationship with Simpson-in-law Pete Wentz is stronger than ever!

The sensitive singer met up with the Fall Out Boy bassist for lunch at Magnolia yesterday afternoon after a private workout. Neither Pete nor John would confirm whether they're working on any music together - but as long as we keep catching 'em hanging out, we're still holding out hope for a collaboration!