Ask Billboard: Songs Two Good Not To Be No. 1

PSY's 'Gangnam Style' joins the list of memorable No. 2 Hot 100 hits; fun.'s 'Some Nights' does the same for No. 3-peaking songs; Demi Lovato's sales; and more soundtrack stopgap hits.

As always, submit your questions about Billboard charts, sales and airplay, as well as general music musings, to Please include your first and last name, as well as your city, state and country, if outside the U.S. Or, Tweet questions to Gary Trust: