As if Lady Gaga Live at the Doritos #BoldStage at SXSW wasn't making her message clear enough, the pop star's show is a once-in-a-lifetime performance. Case in point: Gaga's tapped South Korean girl group Crayon Pop to open for a handful of summer tour dates.

Mother Monster took to Twitter to reveal the five-member act will open "Lady Gaga's artRave: The ARTPOP Tour Ball" from June 26 through July 22.

So who is this K-pop group? For hardcore fans, the decision to land on a huge American tour might be surprising. After debuting in 2012, Crayon Pop struggled to land a hit on the K-Pop Hot 100 until they found viral success with fourth single "Bar Bar Bar"—shared by Gaga—released last summer. The helmet-clad, quirky-cutesy quintet became a domestic sensation with their "straight-five engine dance" (seem at 0:50). The dance was parodied across the nation and sent the girls to No. 1 in South Korea. Think of it like a more contained "Gangnam Style."

The success helped Ellin, Soyul, Gummi, Choa and Way (aka Crayon Pop) land a major record deal with Sony South Korea and 15 million YouTube views of their breakout hit. The group followed up with an equally-silly, uber-catchy holiday single "Lonely Christmas"—boasting 4.7 million views (below)—and they have a new single "Hey" set to be released April 1.

With the exposure from Gaga, could this push Crayon Pop into the U.S. mainstream a la Psy? Find out where you can see Gaga and Crayon Pop with the full tour dates here.