Demi Lovato's Stylist Law Roach Talks Bringing Glamour To 'The Fight of The Century'

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Demi Lovato preforms the American national anthem "The Star-Spangled Banner" prior to the super welterweight boxing match between Floyd Mayweather Jr and Conor McGregor at T-Mobile Arena in Las Vegas.

For her powerful rendition of the National Anthem at the hotly-anticipated Floyd Mayweather-Conor McGregor fight, pop singer Demi Lovato's vocals and sleek outfit shined bright in the boxing ring.

The "Sorry, Not Sorry" singer rocked an elegant white cape dress from Christian Siriano and cinched her waist with a wide mixed metal (silver, gold and a little copper) Roberto Cavalli belt. Amping up the classic look is a pair of white gold pave diamond earrings and complementary stacked diamond rings by Effy Jewelry. She wore her signature brown smokey eye with long, flirty lashes and a shimmery nude lip while her long, dark tresses were slicked back with slight volume at the front.

"There is a certain elegance about Vegas. As barbaric as it (boxing) is, there's something a bit glamorous about all the women dressed up and men in suits. Even McGregor and Floyd, the way they've been turning up their style game at the pre-events, so I wanted it to feel a little bit elevated and glamorous." image architect Law Roachwho is behind Demi's new lady-like look, tells Billboard exclusively. "I love girls in white (because) it's always so regal, clean and crisp, and actually one of my favorite things to do on a carpet and a performance. I really wanted her to feel glamorous and beautiful and I think the full look lent itself to that."

And as for what's next for Lovato's exciting style upgrade? Roach teases that while her style blueprint is still being defined, he did have a hand in her upcoming Tell Me You Love Me album packages. He tells Billboard Style that "It's very stripped down in comparison to 'Cool For The Summer.' I think it's a different type of sexy and what we planed is a bit more ladylike."