You may be talking about "Glee"

This is a melodramatic musical comedy with a very cheerful rhythm. The story tells the story of Will Schuester (played by Matthew Morrison), an optimistic high school teacher, who takes over the school choir and dreams of leading the team to win the national competition. But the reality before Will is: there are all kinds of students who come to participate in the choir, most of them are very unsociable, and some are even "weirdos" in the eyes of others.