Project Runway fixture Tim Gunn is coming to Gossip Girl this fall.

After watching the first Season 4 trailer, it's certainly a fitting piece of casting news. The ubiquitous fashion mentor will play himself in an episode set to air in late October.

EW theorizes (no details are available) that Gunn’s arrival is tied to the upcoming Fashion’s Night Out-centric plot, though that story is said to conclude by September 27.

Another idea? Perhaps wannabe designer Jenny returns and Gunn is somehow involved with her career pursuits. How do you think the big Gunn will be tied in? Share!

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