"Superstar" is a song written by Tegan Quin, featured on two Tegan and Sara albums, Under Feet Like Ours and This Business of Art. The two versions are musically considerably different, although the lyrics are about identical. It is a song that they have not played live since the early 2000's, and when they have, it has only been as the second half of a medley with Hop a Plane from The Con (album).
Tegan no longer likes Superstar anymore, go as far as to say that she hates it, which is why they do not include it in their set lists any longer. Only in caving to pressure from fans have they ever played it in any form. It is not expected that they will ever play it again, although many fans wish that they will perhaps re-record it one day.