A controversial Japanese artist who created feminist artworks based on moulds of her vagina has announced her engagement to the lead singer of The Waterboys​, Mike Scott.

Megumi Igarashi​, who calls herself Rokudenashiko​, or good-for-nothing girl, met the Scottish-born musician in 2014 when a campaign protesting her arrest on obscenity charges went viral.

Megumi Igarashi and fiance Mike Scott.

She has thanked police for bringing the pair together and invited Tokyo's police prosecutors and arresting officers to her wedding.

Igarashi has long challenged Japan's censorship laws and her society's vilification of the female body. In July 2014, Tokyo Metropolitan Police arrested Igarashi for allegedly for distributing obscene materials.