Morales originally created "Needin' U" as a demo, resulting from his experimenting with various samples over a three-hour period, which he never intended to release to the public.
However, following positive reactions from fans and other DJs after Morales started including the track in DJ sets, he decided to release it commercially.
The rather short time (for production standards in house music and for US DJs at that time) between the release of Spearmint's and Morales' single and that the former was primarily a hit in the UK speak further against the claim that A Trip Into Space inspired Morales to make use of the Rare Pleasure sample for a house track.
In addition, the single was re-released in 2001 with a brand new vocal version of the song featuring the British electronic music vocalist Juliet Roberts.
This new version, with original lyrics and vocals was titled "Needin U II" New releases of the single also included a new remix - "Dark Face Dub" which was also produced by Morales.