On 14 May 2012, Labour Party MP Louisa Wall stated that she would introduce a private member's bill, the "Marriage (Definition of Marriage) Amendment Bill", allowing same-sex couples to marry. The bill was submitted to the members' bill ballot on 30 May 2012. It was drawn from the ballot and passed its first and second readings on 29 August 2012 and 13 March 2013, respectively. The final reading passed on 17 April 2013 by 77 votes to 44. Supporters in the galleries greeted the bill's passage with applause and sang the traditional Māori love song "Pokarekare Ana", with many MPs joining in. Conservative lobby group Family First called its passage "an arrogant act of cultural vandalism". The bill received royal assent from Governor-General Jerry Mateparae on 19 April and took effect on 19 August 2013.