Clue: Singer whose 2005 #1 hit "Hollaback Girl" was produced by Pharrell Williams as half of the Neptunes: 2 wds.

Singer whose 2005 #1 hit "Hollaback Girl" was produced by Pharrell Williams as half of the Neptunes: 2 wds. is a crossword puzzle clue that we have spotted 1 time. There are related clues (shown below).

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