 Yummie's roots are in a group known as Unit C, which was formed in 1995 and originally consisted of Petra Garnås, Göran Florén, and Thomas Walther.Following a performance at a local television station, at which Unit C met Teddy Gustavsson, Gustavsson soon joined the group as well.A demo music video for the song "Hello" (which would later be included in their debut album in a remixed form) was created in 1997, and after a series of live performances and songs recorded in the studio, the label Stockhouse picked up Unit C.

The group's sound was changing, and Unit C was known as Bubblegum from 1998 to 1999.