Update: Removed Jose Veras from this list. Mike makes a good point that the skin color is off. So, it's most likely Watanabe as was reported.

For the annual rookie hazing dress up, this year's theme was The Wizard of Oz. Here's the lineup (names linked to pictures).

The Cowardly Lion: Joba Chamberlain
The Scarecrow: Shelley Duncan
Palace Guard: Ross Ohlendorf
The Tin Man: Phil Hughes
Flying Monkey: Kei Igawa
The Wicked Witch of the West: Edwar Ramirez
Flying Monkey: Tyler Clippard
Munchkin Kid: Matt DeSalvo
Tree: Yumi Watanabe (Igawa's Translator)
Palace Guard: Bronson Sardinha
Mayor Munchkin: Dava Cavalea (Strength Coach)
Munchkin Kid: Alberto Gonzalez
Glinda the Good Witch: Chase Wright
Dorothy: Ian Kennedy

Jen from NoSenseWorrying.com has a great set of photos including a couple of classic shots of A-Rod and Mo and Mo and Jeter enjoying the moment.

The AP has an article on the event:

"I think this is the No. 1 costume, right here," Wright said.

Chamberlain seemed to agree. As Wright walked past, the popular setup man laughed out loud.

"Hey, can I get your number?" he said.

As does Yankees.com:

"This is a very glorious moment for me," Duncan said. "It is what it is. I was meant to be the Scarecrow. You go with it, you deal with it and you don't think about it, because what can I think with? I'm a Scarecrow with a mission."

"Put 'em up, put 'em up," Chamberlain yelled, shadow-boxing anyone who walked near.

Via Jim Johnson and Ben.