Who was born first, Ryuichi Kawamura or Jason Scheff?
Jason Randolph Scheff
Title: Jason Scheff
Passage: Jason Randolph Scheff (born April 16, 1962, in San Diego) is an American bassist, singer, and songwriter.  From 1985 to 2016 he was the bassist and singer for the veteran pop-rock band Chicago.
Title: Ryuichi Kawamura
Passage: Ryuichi Kawamura (河村 隆一 , Kawamura Ryūichi , born May 20, 1970 in Yamato, Kanagawa) is a Japanese singer-songwriter, actor and record producer.  He is best known as lead singer of the rock band Luna Sea.  After the group disbanded in 2000, Kawamura continued his successful solo career.  In 2005 he formed Tourbillon with fellow Luna Sea member Inoran and Hiroaki Hayama.  He has recently rejoined Luna Sea, as they reunited in August 2010.
Title: Chauncy (album)
Passage: Chauncy is the 1996 debut solo album by singer/songwriter/bassist Jason Scheff.  Scheff is probably best known as a member of the band Chicago, where he has been the bassist and a lead singer since 1985.  It also featured the only officially available recording of his 1993 co-composition "Mah Jongg" prior to the release of the original Chicago recording in 2008.
Jason Scheff Ryuichi Kawamura