In 1997, with two Japanese comedians—Kyoya Nanami and Amazan—and later with a second female vocalist known as 'Keddy', she was included in a musical act known as the Black Biscuits. The group was formed primarily as a "rival band" for the Japanese music group Pocket Biscuits, which was the creation of the Japanese variety show "Utchan Nanchan no UriNari". Between 1997 and 1999, they released four hit singles and a full-length album, "Life". Their single CD ""Timing"" recorded 1.5 million sales in 1998. And, they participated in Kōhaku Uta Gassen in 1998.