Cool new pop act Quiescent Frozen Confections popped up unexpectedly during a set by cofounding bassist/ vocalist Trish DeLish and did two tunes: the catchy “Pop One” and the even catchier “Pop Two.”

An hour later, giddy with glee from how well the hit-and-run gig had gone, QFC tried to get lightning to strike twice by interrupting headliners Sour Patch. Something did strike, and they got burned.

Sour Patch drummer Kent Cantiglionessi erupted, beating back the  interlopers with incessant booms and crashes while singer Chimmy Accione chided the all-woman band with remarks that many took to be sexist and offensive. Accione apologized later in the set, but not in a manner which struck onlookers as sincere. Afterwards, he simply said, “Dude, don’t even pretend you’d do different.”

Trish is sheepish about the dis. “We should’ve quit while we were ahead,” she avers. “Like, two or three vodka tonics ahead. We felt strong, and we got knocked back down to size. It’s what happens in bars a lot. It just doesn’t happen to bands on the stage.”

Quiescent Frozen Confection’ s remorse has stalled their long awaited full set debut. It has, strangely, gotten them a couple offers to crash other bands’ sets. “One was a joke, we think. But the other’s for real.” If you DON’T want a QFC incursion during your band’s set, you might want to notify the bouncers.

Tonight: The Pop Sickles and The Sore Bays at the Bullfinch… The Bertollis, Italian family reunion bash (open to the public) at Hamilton’s. Lots of wedding-type covers… An Evening with Lemoncello at D’ollaires, with nary an original member of that once-tart, now jaded-by-fleeting-fame outfit…