In July, it was rumored that singer Rumiko Koyanagi and actor Masataka Ishibashi were planning to get married, but Koyanagi denied that they were in a relationship at the time. Now, she has admitted that they were dating, though they have already split up.

On Tuesday's broadcast of "Super Morning," Koyanagi said that the two first met in April 2006 when they appeared together in a play. They dated for about a year, but broke up about a month before the relationship was publicized.