Billboard is reporting that Glee‘s version of “Teenage Dream” is on track to have the single-best sales week ever for a song from the show. Released on Tuesday, the song reportedly sold 55,000 copies in its first day — the highest of any Glee track to date — via iTunes, and is predicted to sell between 150,000 to 175,000 downloads by Sunday, Nov. 14.

http://news-briefs.ew.com/2010/11/12/teenage-dream-shaping-up-to-be-the-most-succesful-glee-single-to-date/