Whats the name of this manga? Are there similar manga? There this "plain" girl who is a fan of this idol duo (2 girls), and sometimes she imitates their songs for the nieghborhood kids. Two guys see her and see hidden talent. The girl then goes to the duos concert, and it turns out that the new member never showed, so they picked the girl to replace the new member. IT is later shown that the two guys who saw her before is the girl duo.
