Question: Who sang i dreamed a dream on glee?
Disambiguated questions and answers: question: Who were the characters that sang "I Dreamed a Dream" on Glee?
Who were the actors that sang "I Dreamed a Dream" on Glee?
answer: Shelby Corcoran, Rachel Berry
Idina Menzel, Lea Michele
Natural Questions answer: Rachel
Shelby (from the Wikipedia article "Dream On (Glee)")