Sheldon Haley is the least known member of N.E.R.D. He sings backup, does background noises for certain songs and is in most of the group's music videos.

Known to fans as "Shay," Haley is a mysterious musician. He has not been seen featured on any other artist's songs and he is not prominent in N.E.R.D. He performs with the group and is the only member on the cover of In Search Of, but other than that he is not seen much concerning the band.

Williams has spoken about Haley during interviews and says he is an integral part of the group. Haley seems to be a very ative influence on the sounds and lyrics of N.E.R.D.'s songs.