Can't identify it. Would like to know as well. Pretty convinced too it's a custom job based on some (recent) commercial brush script. The closest I have for the moment is Rukola using some stylistic alternates (/F, /r, /d). Signalist is nice too. Still searching...

New to me. Some similars.
Emil Bertell's No. Seven http://www.myfonts.com/fonts/fenotype/no.-seven/
Jason Walcott's Scriptorama Tradeshow http://www.myfonts.com/fonts/jukebox/scriptorama-tradeshow-jf/
Michael Hochleitner's Sauber Script http://www.myfonts.com/fonts/typejockeys/sauber-script/
Don

Definitely hand-drawn, per this post:

http://abduzeedo.com/identity-fitzgerald-burger-company

Thanks Kevin. Hope someone takes this as a challenge to complete the alphabet and make a font.
Don

If you want a font with the tone of the lettering in Fitzgeralds, I can now recommend Suzee FY http://www.myfonts.com/fonts/fontyou/suzee-fy/ as being closer than any of the other suggestions. The _z_ and _g_ are quite different but the casual reader should accept Suzee FY as a continuation of the Fitzgeralds logo lettering.
Don