By Lara Walsh
Jun 07, 2016 @ 9:15 am
Kevin Mazur/WireImage

It's easy to forget that Christina Aguilera wasn't always synonymous with a signature red lip and platinum retro waves. Back in her "Dirrty" days, the beauty chameleon constantly experimented with edgy looks and hair 'dos ranging from tiny rainbow braids to jet-black tresses.

Since 2004, however, the "Beautiful" songstress has primarily stuck to her trademark blonde with subtle variations.

Xtina's newest red-hot look, then, is one of the biggest recent beauty game-changers for the big-voiced songstress. She debuted a brand-new red shade for a performance at a Hillary Clinton fundraiser Monday night in Los Angeles, and the 35-year-old has never looked better.

The chart-topper wore her auburn hair in retro waves and accentuated the color with crimson lipstick and a plunging black suit as she performed her biggest hits at the Greek Theatre.

Kevin Winter/Getty

The Voice coach also took to Instagram to share a more close-up shot of the sultry look with her fans.

💋

A photo posted by Christina Aguilera (@xtina) on

RELATED: Christina Aguilera's Changing Looks

No word yet on whether this auburn look is here to stay, but we're definitely liking the change! See more celebrity hair makeovers in our gallery.