A core member of the five-man pop group SMAP has offered an apology for the band's decision to break up on Dec. 31 after more than a quarter of a century together.

"I now cannot find words to say to all of our fans who, just like me, have seen SMAP as part of their life," Takuya Kimura said Friday on his Tokyo FM radio program "Takuya Kimura's What's Up SMAP!"

"I just feel sorry for all fans of SMAP. I'm really sorry," the popular member better known as "Kimutaku" said.