One of the ultimate bands in japan. Made up of two people, Tak Matsumoto (lead Guitar) and Koshi Inaba ( lead volcals).

Name: Koshi Inaba; kanji also good for "Hiroshi"
Birthday: September 23, 1964
Hometown: Tsuyama, Okayama Prefecture
Astrological sign: Libra/Virgo
Chinese zodiac: Dragon
Education: Graduate of Yokohama University; teaching license in Mathematics
He can't resist : Dogs and cats
Occupation: Lyricist and vocalist for B'z
Nicknames: 178, 178-san, Sensei, Ko-chan

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Name: Takahiro, but everyone shortens it to Tak.
Birthday: March 27, 1961
Hometown: Osaka, Japan
Astrological sign: Aries
Chinese Zodiac: Bull
Is very fond of: Zebra stripe patterns
Accessories of choice: Chrome Hearts
Number of guitars in collection: Over 80
Cost of a a Gibson signature Takburst guitar: US$6000
Did Tak give one to Ko-chan? Yes, both models
Chances Tak will give one to you: Slim indeed
Nicknames lovingly bestowed by fans: Mat-chan, Ma-chan, Takboss, Osaka Diva
Occupation: Composer, guitarist, and Takboss of B'z

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Koshi-san's voice goes very well with takbosses guitar playing ^_^
by B'z fan January 9, 2004
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Great two man Jrock band.

Guitarist Tak Matsumoto is the only Japanese guitarist to have a signature gibson guitar named after him.
"Negai" is a great song by the B'z
by arania May 18, 2004
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B'z Up means bloods up crips down bitchhhh
mo said b'z up becuz hes a blood
by vvvvv1354 February 1, 2006
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