Do you want to compare Songbird with Duplicate Girl? Discover the powers, weakness & weapons of Songbird and Duplicate Girl from Songbird Biography and Duplicate Girl Biography. Find out all about Songbird and Duplicate Girl.# Check out how is Songbird unique and distinct from Duplicate Girl. Discover their love interest, sidekicks, family tree and the movies and games list in which Songbird and Duplicate Girl have appeared. Find out everything about them here!