Sugar Motta is a character on the Fox TV show Glee. She is currently a junior at William McKinley High School. Her father is the wealthy owner of a piano business who donates three repossessed pianos to the glee club in The Purple Piano Project, the episode in which she first appears. Sugar has self-diagnosed Asperger syndrome, which she uses to explain why she can say whatever she wants. After the glee club performs in the school cafeteria in the hopes of recruiting new students, Sugar shows up to audition, telling the club that they're terrible but she's awesome and will be their new star. Her audition is a stunningly horrendous rendition of Big Spender, and she becomes the first person who fails to get into New Directions after auditioning. In I Am Unicorn, her father makes a huge donation to the school to set up a second glee club that will feature Sugar as the star, and recruits Shelby Corcoran to direct it. When Mercedes, Santana and Brittany join, Sugar assumes they'll be her backup singers, but Santana openly tells her she's not a good singer, and she should stay out of their way, at which point Sugar admits that she "just wanted to be on the winning team for once". Sugar has subsequently been seen dancing and singing in several polished performances, indicating that she has greatly improved.
After The Troubletones place second at Sectionals, Shelby resigns as director, and the Troubletones are told they are all welcome in New Directions, Sugar accompanies Mercedes, Santana and Brittany when they return, and sings We Are Young with the group. In Heart, she gives Will money to pay for costumes and makeup for Regionals, and throws a big Valentine's Day party.Artie and Rory compete to be her date at the party, and Rory is chosen after his claim that he is being deported at the end of the school year wins her sympathy.
Throughout the season, there is a noticeable increase in her talent as she goes from an awful singer in The Purple Piano Project in her audition of Big Spender, to a reasonably accomplished back-up singer (possibly thanks to the coaching of Shelby and Will), receiving solo lines in several group numbers with New Directions