"So Excited" is a song recorded by American singer-songwriter Janet Jackson featuring guest vocals from rapper Khia. It was released in August 2006 on Virgin Records as the second single from Jackson's ninth studio album, "20 Y.O.". The song was written by Jackson, Jermaine Dupri, James Phillips, Johntá Austin, James Harris III, Terry Lewis and Khia Chambers, with Herbie Hancock, Michael Beinhorn and Bill Laswell also receiving songwriting credits for sampling Hancock's 1983 song "Rockit". Production for "So Excited" was handled by Dupri, LRoc, Jam, Lewis and Jackson. "So Excited" is musically a hip hop and dance song which lyrically expresses submission from a woman to her lover.