Only ET is behind the scenes with legendary rockers Kiss on their first-ever Dr Pepper Super Bowl commercial -- featuring Mini Kiss!

"The basic premise of this is I'm Dr. Love -- you're not," Gene Simmons tells ET. "Dr. Love is here to make you all feel better, girls."

Airing during the second quarter of the big game this Sunday, the ad features the return of Gene as Dr. Love along with lead singer Paul Stanley and the rest of the Kiss line-up rocking onstage with Mini Kiss, extolling the virtues of Dr Pepper Cherry's uniquely smooth taste.

"It's a little hint of Kiss with a little hint of cherry," says Paul in pitchman mode.

"It's always the sincerest form of flattery," says Gene of the band's pint-sized counterparts. "Mini Kiss has everything that we have -- perhaps not the same size, but then size isn't important… Yes, it is important, isn't it?"

"That's right, and they work for half price," adds Paul. "Their songs are shorter."

Native New Yorker and major Kiss fan Joey Fatale, who plays mini Gene, came up with the idea for his tribute band one day while looking at one of the Kiss albums.

"It just popped in my head, the name Mini Kiss," he explains. "I said this'll be cool - four little people dressed up as Kiss." After their first gig at Studio 54 in Manhattan, they were an overnight success, and the rest is history.

"If it wasn't for Kiss, we wouldn't be here," he says reverently.

Watch ET for more with Kiss!