There are two artists called BIGMAMA. 1. A Japanese pop punk band Members: masato kanai (vocal & guitar) 
hiroya kakinuma (guitar & vocal) 
hideto yasui (bass) 
mao higashide (strings) BIGMAMA was formed on 2001. called POP PUNK band with strings. they has been sold 2,000 copies of DEMO-CD as D.I.Y. in July of 2006, they released 1st Mini Album 「SHORT FILMS」from RX-RECORDS as a second artists following RIDDLE. and it has been sold over 8,000 copies. Read more on