8.6 seconds bazooka(8.6秒バスーカー) is a Japanese comedy duo which are composed of Hamayanen(はまやねん) and Takana Single(田中シングル).
They graduated from New Star Creation(NSC), a comedy school in Japan, on March 2014. 8.6 seconds bazooka are formed and debuted on April 2014.
After less than a year, they gained popularity in rhythm material "Rassun'gorerai"(ラッスンゴレライ)(in other words, Lassun gorerai, Lassun golelai).
Here is a video of 8.6 seconds bazooka acting "Rassun'gorerai."
You can find many videos which covers "Rassun'gorerai" on Youtube.
8.6 seconds bazooka on twitter
Postscript added at 7:40 AM on January 31, 2015:
Oriental Radio, a Japanese comedy duo, imitated "Rassun'gorerai" in front of 8.6 Seconds Bazooka. Ironically, many people say that Oriental Radio did better than 8.6 Seconds Bazooka.
English version was uploaded on YouTube by Satoshi Castro, a Japanese YouTuber(YouTube personality).