Demi Lovato on Her Mayweather-McGregor National Anthem: 'It Was Mind-Blowing!'

Fresh from singing the national anthem at Saturday night's super welterweight boxing match between Floyd Mayweather and Conor McGregor in Las Vegas, Demi Lovato hit the carpet at the MTV VMAs 24 hours later in Inglewood, California, looking fierce in a sheer and sparkly Zuhair Murad outfit.

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