Photo: The Unauthorized Rolling Stones bring their tribute show to Blue Fin on Friday.

The Unauthorized Rolling Stones isn''t the only Rolling Stones tribute band making rounds, but it''s one of the newest. It was just last June that the band--the brainchild of Rudy "Mick" Colombini--joined the small army that includes The Rollin'' Clones, Rollin'' Stoned, Railing Stains, The Counterfeit Stones and Sticky Fingers, among others, in paying homage to what is certainly the most durable (and, arguably, greatest) rock ''n'' roll band of all time.

Judging by a concert video, the band--Colombini, Jimmy "Keith" Craven, Franklin "Ronnie" Vasquez, Shaun ("Brian"/ "Bill") Marshall and Trey "Charlie" Cobb--comes closest to capturing the Stones of the mid ''80s, a time when the bandmembers were firmly entrenched as respected elder statesmen in the genre, and before they had become senior citizens pretending they were still young. The Unauthorized Stones do a more than adequate job in delivering the high-energy feeling of the real thing in concert; if Colombini''s Jagger doesn''t have quite the same sizzle and snap that the real Jagger has, he does have the right moves. Audience members who squint their eyes just a little bit will have little trouble pretending they are seeing the real thing on stage.

But according to drummer Cobb, the Unauthorized Stones are less about replicating the their heroes than they are about honoring them--and making a little money while they''re at it.

"We''re just trying to do a dedication to them," says Cobb. "I''m trying to impersonate Charlie Watts more musically than personality wise. He''s a pretty quiet drummer. I just try to play as close to him as I can for the sake of the song."

"We don''t really talk like them or anything. The guy who''s playing Keith, Jimmy Craven, talks with a British accent, but it''s not really a Cockney accent, its more upper class."

Cobb also says his bandmates are pretty down-to-earth about the significance of what they''re doing. They all work for Colombini''s Marvelous Show production company, and they all have individual creative careers outside the gigs they play with the tribute band.

"We''re all still doing original things," says Cobb. "But this was a good idea and we do it pretty good. It''s a lot of fun. I never actually saw myself being in a tribute thing but it''s a lot of fun. It''s just a good way to make some money and have some fun. And I think that''s what everyone in the band feels."

While the band''s press kit lists a whole lot of extras that they can provide (including a light show, go-go dancers, video DJ and big-screen projections, their gig at Blue Fin will be the stripped-down version--just five guys having fun while pretending to be someone else.