There is uncontainable joy bursting out of a sequined bikini and its name is Anna Copa Cabanna, a go-go dancing babe-host of freewheeling Australian charm and blonde banana curls. You can’t really go wrong when your fabulous 70s-style variety show is approximately 50 percent tits ‘n’ xylophone, and the rest is choreographed backup dancers in matching sparkly unisex unitards, games with prizes, punk rock, freaking out, and other forms of miscellaneous unruliness. Tonight’s performance at Joe’s Pub, themed Love in Space, also includes alien sightings and hula-hoops. Super weird combo there, girl. See you there.