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#IrelandVoteYes lights up Twitter in support of gay marriage referendum

A referendum vote to legalize same-sex marriage is underway in Ireland -- and it's looking likely that the heavily Catholic country will pass it.
Partners Adrian, left and Shane, arrive to vote at a polling station in Drogheda, Ireland, Friday, May 22, 2015. (Photo by Peter Morrison/AP)
Partners Adrian, left and Shane, arrive to vote at a polling station in Drogheda, Ireland, Friday, May 22, 2015. Ireland began voting Friday in a referendum on Gay marriage which will require an amendment to the Irish constitution.
By MSNBC staff, MSNBC staff

Worldwide support for Ireland to legalize same-sex marriage is lighting up social media with the hashtag #IrelandVoteYes, while Irish citizens living abroad tweet photos of themselves traveling #hometovote. It's up to Irish voters to pass the referendum allowing gay marriage in the largely Catholic country, and it's looking likely that they will.