If anyone was wondering where the freshmen were on Thursday night, here’s the answer: Hordes of intoxicated undergrads got down at Memorial Union with the Ying Yang Twins, whose explosive show was sponsored by the Wisconsin Union Directorate’s Music Committee.

Opening acts included local rap duo Fall Guys and DJ Kid Cut Up, who spun overplayed hip-hop hits for an hour-and-a-half while concertgoers began to wonder if the Ying Yang Twins were even going to make an appearance.

But D-Roc and Kaine arrived around 11 p.m., opening the show with their 2000 single “Whistle While You Twurk.” In recent years, the Atlanta-based duo has made a name for itself in the genre of crunk rap, which features angry and excited-sounding lyrics, hoarse chants and repetitive beats.

Next, the Ying Yang Twins performed their single “Get Low” while the pulsating crowd pointed to the window and the wall during the song’s infamous chorus. “Say I Yi Yi” paired grinding beats with a chorus that could have been sung by a 5-year-old; this type of onomatopoeia is common in their lyrics, along with the terms “crunk,” “twurk” and “Get low.” Most songs also revolve around favorite pastimes of smoking, driving around and, of course, women.

“I know it’s a lot of y’all big talkin’,” Kaine declared as the sparse beats of “Wait (The Whisper Song)” filled the hall. He called the song “nasty music” — so nasty, in fact, the duo performed an edited version of the track. In an effort not to disappoint, however, the Twins held their microphones to the audience for the infamous whispered chorus.