Well, this is kind of funny--Mike Savage from the A&RNetwork.com found a way into the Viper Room show last month and took a count of the trucker hats in attendance:

"17 'IRONIC' TRUCKER HATS were seen being worn by the scenesters that filled L.A.’s Viper Room for the Ima Robot show last week. Aside from dealing with THOSE A-holes, the band put on an INCREDIBLY energetic performance. Singer Alex Ebert is a star, despite his mullet (Kat from KROQ says it best, 'He looks like the love child of David Bowie and Geddy Lee'."

ha. maybe ashton was there. jk. by the way, i like the mullet. and oli was wearing a red trucker hat after the show in chicago. it said pimps and hos. it was great!

I do believe that OG was wearing said styled 'trucker hat on this nite!
Only his style 'tweeks it up quite a bit, with cop shades, gold chain and some king of gold english script on the chest that might have read
"FuCK YOU UP"