O’Connor has offered to perform Conor McGregor’s walk-on song as he prepares to fight Floyd Mayweather, Jr. next month. The Irish star sang The Foggy Dew before McGregor’s UFC entrance at the MGM Grand Garden Arena before a fight in 2015, and now she wants to bring him luck in Las Vegas again. On her personal Facebook account, Sinead has asked McGregor to send her U.S. doctor Nabil Siddiqi an autograph, calling the medic, who has helped her overcome a series of mental health issues:
[He is] the biggest Conor McGregor fan on earth. He totally saved my life so I can keep singing for your fights.