KP’s four singles from this album refer to her album’s four singles that topped certain charts. Artists can release singles (promotional singles) before the album is released, or after. Anyway, they can release singles at any time.

The first, second, third and fourth orders in KP’s new brick “TEENAGE DREAM” are CALIFORNIA GURLS, TEENAGE DREAM, FIREWORKS and the latest E.T.

Albums can be released as singles even after they have been released for a long time. Generally, only when a single is released will it have a chance to be on the list, because this is determined by radio playback and downloads, so that it is possible to win the championship. The company decides which single to release and when to release it.

Generally speaking, before releasing a new album, a singer will release a single to promote the album. This varies from person to person. The artist's company will then decide how to place the order.