Help with song I saw on MTV Japan

[indapie2000]

I was in Japan recently, and saw this really good song on MTV Japan. It's called "Lets go", I'm not sure of the artist but know it's at least one guy in there featuring a female rapper (I think she is Japanese) and she says the word "Japan" in her rap part, which is at the end of the song before they play the music out, the song is in English.
Any help would be apricated