Osaka Popstar has never played live.
I'll take your word for it. All I know is that not too long ago, there was a "revue" show going around claiming to include members of the Ramones, Misfits, etc., and performing the "hits" of all the bands mentioned above. When they came through Austin, the club people that booked them claimed that they had only, like, one member of one band, and the club felt like suing them for misrepresentation.
Whoever they were, or claimed to be at least, it seems like a very similar conglomeration to Osaka Popstar, so I figured there was probably at least some overlap - it sounds like O.P. is basically the previous project done right!
- NotDan
(An aside: On my first trip to L.A., back around 1990 I guess, I got to see the Drunkfux, a "supergroup" featuring Richie Ramone, Steve Stevens, Slash, and members of a local SoCal funk band. They did pretty much nothing but Rolling Stones and AC/DC covers. It'd be cool to hear that combo doing Ruby Tuesday with Daniel and Jad as guest performers!)