Conor McGregor and Sinead O’Connor are two of the most globally recognized icons to come out of Ireland. At UFC 189 in July 2015, the two collaborated on an historic MMA moment. As he walked out for his bout against Chad Mendes, O’Connor welcomed McGregor to the cage by belting “Foggy Dew” the Irish fighter’s signature walkout song, in person at MGM Grand Garden Arena in Las Vegas.
See the rest here: