Britney Spears Bares Legs, Thong in Sheer Reem Acra at Billboard Music Awards

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Britney Spears

Fishnet boots and a train complete the risqué look.

Britney SpearsBillboard Music Awards look doesn’t leave much to the imagination. The "Toxic" pop star who is being honored Sunday night with the prestigious Millennium Award in Las Vegas opted to wear head-to-toe black, but it was anything but basic.

Spears, who has historically favored high necks, chose a super-short embellished lace Reem Acra dress with sheer crystal-studded sleeves and a long sheer train. The bodice of her gown also was sheer, showing off her black bra and black thong. A pair of over-the-knee boots by Schutz in a cutout fishnet pattern and Jacob and Co. jewels completed her revealing ensemble.

If this look is any indication, we can expect her to make an equal statement when she takes the stage to perform a medley of her hits. Designer Mark Zunino created the custom costumes for the iconic blonde, which involves thigh-high ruby-red boots, lots of hand-beading and draped crystals.