Fukuyama Masaharu 福山雅治
Born in Nagasaki on Feb. 6, 1969, Fukuyama Masaharu is very popular as a singer, songwriter and actor. He debuted in 1990 as a singer and among his beloved songs are Sakurazaka and Niji (theme song for Waterboys). His TV credits include Hitotsu no Yane no Shita, Perfect Love and Bijo ka Yajuu (where he played the male lead role opposite Matsushima Nanako)
An avid photographer, he went to Sydney, Australia in 2000 to cover the Olympics for TV Asahi as a photographer. To the delight of his thousands of fans, the former chainsmoker Masha (as he is well known) has already quit smoking. The effect of quitting smoking had a remarkable improvement in the quality of his voice.
Here is a YouTube link to a live performance of Sakurazaka. Enjoy!! 

Official website:
Fukuyama Masaharu
Thanks to Drama Wiki and Wikipedia for the additional information. 

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