Awhile ago, there was a girl looking for "Mobster Music" for a set she was going to do. I have a fedora and long suit jacket that I wear during a set the I do, and this is the music I use:
A3- Woke Up This Morning (Sopranos Theme Song)
Cab Calloway- Minnie the Moocher
Cherry Poppin' Daddies- Zoot Suit Riot

It's not all "Mobster Music", persay, but the set and the outfit gets the biggest response from the crowd that I get all night, and people ALWAYS sing along to the songs. Plus, the order of the songs gets people riled up.
If she still needs it, then I hope this helps.
If not, then maybe someone else will use it and make some $$.

-slashingbeauty