They're old a bit and some of them have been called like, "Wack" or "Pop".
But honestly I don't care about all that.
What important is that they just told Japan what Hip Hop Music is.
And I think we have to respect that.
"Konya Wa Boogie Back" by Kenji Ozawa feat. Schadaraparr (1994)
"Da. Yo, Ne." by East End & Yuri (1994)
"Grateful Days" by Dragon Ash feat. Zeebra & ACO (1999)
Nowadays Hip Hop music is so huge in Japan.
Sometimes they even collaborate with American Hip Hop Artists like below.
"I Still Love H.E.R." by Teriyaki Boyz feat. Kanye West (2007)
Yes, I really love H.E.R.!!!