Ayaka and Miura Daichi's collaboration song "Heart Up" is featured in the CM for Tokyo Metro's "Find my Tokyo" campaign. 

Actress Ishihara Satomi serves as the image character and Kobayashi Takeshi as the music producer for the "Find my Tokyo" campaign CM series. In the CM, Ishihara visits spots in Nishi-Nippori where you "unconsciously want to take pictures." 

"Heart Up" will be released as a single on February 14. It was written and composed by Ayaka, and arranged and produced by Kobayashi Takeshi. 

Source: natalie