Pharrell Williams has tied the knot with his longtime girlfriend Helen Lasichanh.

Usher and Busta Rhymes attended the wedding ceremony and also put on a mini-concert for the newlyweds, Radar Online reported.
Robin Thicke, whose hit track 'Blurred Lines' was co-written and produced by Williams, was not present at the wedding.
Williams and Lasichanh have a son together.

Pharrell Williams weds Helen Lasichanh More Stills

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