LeAnn Rimes Wears See-Through Dress, Thigh-High Boots, Rocks Bangs at Military Event in Washington, D.C.

LeAnn Rimes attends the 2013 ChalleNGe Champions Gala at JW Marriott Hotel on February 26, 2013 in Washington, DC. Kris Connor/Getty Images

Sexy for our troops! LeAnn Rimes hit a red carpet at the Youth National Guard Challenge gala in Washington, D.C. on Tuesday (Feb. 26) — and instead of red, white and blue, the Grammy-winning singer, 30, opted for not-so-basic black for the event, where she also performed.

With her talked-about new bangs in full effect, Rimes wore a ruffled, partially sheer mini-dress, which she paired with thigh-high black leather boots and simple gold jewelry. Still, the "How Do I Live?" singer looked slightly out of place posing with young members of the National Guard in the racy getup.

Her husband  Eddie Cibrian was a no-show at the National Guard event, but apparently did escort her to the U.S. capital, as earlier pap shots suggest. Loving rainy DC. . . . It's a cozy, rainy day in DC. Going to Pilates. Btw, driving in this city is CONFUSING!"

Her nemesis Brandi Glanville made a much more high-profile splash on the red carpet two nights before — appearing at her very first Academy Awards in a shockingly low-cut gown of her own design.

Sign up now for the Us Weekly newsletter to get breaking celebrity news, hot pics and more delivered straight to your inbox!

Want stories like these delivered straight to your phone? Download the Us Weekly iPhone app now!