What is Michael Bay Saying Into His Megaphone on the Set of Transformers: Dark of the Moon?

Just over the transom here at Movieline HQ comes word that Michael Bay, Josh Duhamel and Rosie Huntington-Whiteley will serve as Grand Marshals for 53rd running of the Daytona 500 on Sunday, meaning the trio will get to utter the famous phrase, "Gentleman, start your engines." This is all done as a tie-in to Transformers: Dark of the Moon, which will feature NASCAR stock cars as "characters" when it's released this summer. Of course, all of this press release-gleaned information pales in comparison to the two new stills of Bay doing his directing thing on the set of Dark of the Moon. To quote Barney Stinson, they're legend -- wait for it -- ary! Click ahead to take a look, and caption to your heart's desire in the comments section.

[Click on the pictures for bigger and better looks.]