Flight of the Conchords, New Zealand’s fourth most popular guitar-based digi-bongo a cappella-rap-funk-comedy-folk duo and stars of the hit HBO show of the same name, brought their quirky brand of comedy rock to DAR Constitution Hall on April 13. Jemaine Clement and Bret McKenzie entered the stage in full robot costumes and began their set with “Too Many Dicks on the Dance Floor”—their techno track about awful girl/guy ratio at nightclubs. Shortly after the overly-rambunctious audience began to yell out song requests, and the band obliged to some including “Business Time” (the ode to married people’s sex, which only happens on Wednesdays because there’s nothing good on TV). It was clear the guys were at times flustered, but played it off with their trademark deadpan humor, with Jemaine quipping, “Shut up drunk lawyers of Washington, D.C. This is not request night.” Bret and Jemaine played rhythm and bass guitars respectively and took turns at the spinet mini-piano in “Hurt Feelings,” as well as drums, steelpan and bongos. Jemaine ad-libbed in “Hiphopopotamus Vs. Rhymenoceros” (“My rhymes are so potent that I made all of the ladies in the first three rows pregnant. Congratulations ladies!”) And the show culminated with a slow-jam version of “Sugalumps”--Bret and Jemaine dropping their guitars and doing a silly dance, trying their best to flaunt their backside and family jewels. Quirky co-star Kirsten Schaal was the opener, and Nigel—apparently the sole member of New Zealand’s philharmonic and symphony orchestras—played cello.