With several special occasion shows under their wing (like their Halloween Rock and Roll Murdershows and New Year’s and Thanksgiving Eve shows), TJ Kong & The Atomic Bomb is no stranger to hosting the perfect holiday freakout party—and tonight, they claim another holiday by hosting the First Annual Kongo de Mayo Party at Underground Arts. Along with the booze-tinged blues rock of Kong and his incendiary band of minstrels, the event will feature an all-night DJ session by DJ Honky Tron, New York’s Lily & the Parlor Tricks, a special mystery headliner, and music from two local acts. Since they performed at last year’s Halloween Murdershow, the Brothers Murphy is no stranger to rocking out with TJ Kong on a holiday. But this time around, Penrose will be ready to play more of the tunes that they’ve been recording with Bill Moriarty. Ever since debuting during a Dangerous Ponies show last December, outlandish sextet Ecce Shnak have delivered a blend of female-male duo vocals, keyboard flourishes, boisterous trumpets, theatrical interactions and then some. And tonight’s set is bound to be a symphonic explosion. Underground Arts,