These Sexy Instagrams of Christina Aguilera Prove That She'll Always Be Xtina

There's no denying that Christina Aguilera's "Dirrty" days alter ego, Xtina, is an icon. But we're here to tell you that no matter how many years have gone by since Christina put on those assless chaps — for the record, it's been 15 years — she'll always be Xtina, at least from what we can tell by looking at her Instagram.

The singer, mom of two, and The Voice judge looks hotter by the minute, most recently showing off her curves in a Fourth of July-inspired red, white, and blue swimsuit and even posing topless for a sexy bathroom selfie. Keep reading to check out those sexy moments and more.