Pharrell Williams used his MasterCard gig in London on Tuesday night (24Jun14) to stand up for up women's rights and demand equal pay for female workers.

The superstar performed a small show for around 600 fans at the Brooklyn Bowl London venue as part of MasterCard's Priceless Gigs series, performing hits including Happy, his Robin Thicke collaboration Blurred Lines and Daft Punk's Get Lucky.

During the show, Williams made a rousing speech in support of women's rights, insisting female employees deserve to be paid as much as their male counterparts.

He told the crowd, "In America, women make 77 cents for a man's dollar. Women need to be paid as much as men... On this planet women are slighted... There are men in here who appreciate women... you have to make it change... The year 2014 is the year everything changed... We gotta start changing some policies."

Williams, who dedicated his album G I R L to empowering the opposite sex, went on to urge women to be more supportive of each other.

He added, "Women you need to support each other. It doesn't matter what clothes she wears or what car she drives, you gotta stop tearing each other down."

Fans won places at the gig through a ballot on Priceless.com/london.