Smashing Pumpkins aside, it’s rare for one musician to handle all the duties of an entire band. It’s even more uncommon when a tour headliner is also in the two opening acts. But James Dewees isn’t your ordinary musician, and his latest tour as Reggie and the Full Effect is far from your routine club trek.

“There’s a lot of miming,” Dewees explains. “R. Kelly makes an appearance and there’s a lot of religious overtones and lots of makeup. We never play the same show twice.”

In addition to leading Reggie, Dewees also fronts opening acts Fluxuation and Common Denominator. He has a simple explanation for his versatility.

“I’m so selfish I can’t get along with anyone else — I do it all myself,” he jokes.

Dewees, who turns 30 this week, is a familiar face in the punk and emo scene. After drumming for hardcore pioneers Coalesce in the mid-’90s, he played keyboards for seminal emo heroes the Get Up Kids and, more recently, for kiddie-punkers New Found Glory.

“This is my 11th year on tour,” he said. “I learned how to perform under any situation, like being sick or wasted or sober.”

In its early days the goofy synth-heavy rock of Reggie and the Full Effect was only meant to be a joke, according to Dewees. After all, the band’s first album was titled Greatest Hits 84-87 and its popular video for “Congratulations Smack and Katy” featured a star-crossed romance between jars of peanut butter and jelly.

“I started this for fun. Matt [Pryor, of Get Up Kids] told me ‘Just watch, in three years it will be a full-time thing,'” Dewees says. “He was right, but it took six years.”

Onstage Dewees is a creative force, intermittently taking on the personas of a Finnish metalhead, a Euro-trash pop sensation and a mad scientist. The result is a spectacle of the unexpected.

“Entertaining people is a lot of fun, watching them laugh,” Dewees says. “The guy who works at the club right now described it as a male burlesque show … I guess it’s male-esque.”

He adds, “If you come, I’ll give you free beer.”

Check out Reggie and the Full Effect with Fluxuation and Common Denominator at the ICC Church in Allston this Saturday, March 18th. Doors open at 6 p.m.