There are at least 2 artists that go under the name of The Neptunes.

1 ) The Neptunes are a Grammy winning record production duo consisting of Pharrell Williams and Chad Hugo who created the sound for very successful hip hop, R&B and pop artists in the late-90s and early 2000s. Their biggest hits include Britney Spears’ “Slave 4 U”, Kelis’ “Milkshake” and Nelly’s “Hot in Herre”.

The Neptunes’ sound is a highly distinctive (although frequently imitated) brand of off-kilter, stripped-down electronic funk.