How A $400 Studded Diaper Turned Into A Must-Have For Top Female Pop Stars

    Heads turned when Christina Aguilera wore it on The Voice but Gaga started the trend two years ago.

    Last night on The Voice, Christina Aguilera wore what was described by many on Twitter as a "sparkly diaper" or "metal panties":

    WTF was Christina Aguilera wearing on #theVoice tonight? Looked like she forgot pants after bedazzling some Depends.

    WTF was Christina Aguilera wearing on #theVoice tonight? Looked like she forgot pants after bedazzling some Depends.-- Allison Perkins

    Why is Christina Aguilera wearing a sparkly diaper?

    Why is Christina Aguilera wearing a sparkly diaper?-- Dave Hanson

    Where the hell was christina aguilera's pants!!!??? Inappropriate to were metal panties that looked like a diaper!! #thevoice lmao!

    Where the hell was christina aguilera's pants!!!??? Inappropriate to were metal panties that looked like a diaper!! #thevoice lmao!-- R'Leen Faihtinger

    on The Voice, look like Christina Aguilera is sporting a sort of diamond bedazzled diaper

    on The Voice, look like Christina Aguilera is sporting a sort of diamond bedazzled diaper-- Emilie Caron

    Something me and lots of ppl on twitter agree on: Christina Aguilera was wearing a weird goddamn sparkly diaper on #thevoice tonight.

    Something me and lots of ppl on twitter agree on: Christina Aguilera was wearing a weird goddamn sparkly diaper on #thevoice tonight.-- ryan

    But wake up, folks! Pretty much every other top female pop star has worn exactly those same metallic undies recently. Nicki Minaj wore them on April 6 for a Nightline taping:

    Apparently Norma Kamali designed these bottoms, which have the official name of she named them "Boy Panty All Over" and are available for purchase here for $400.

    You might recognize this fabric from J. Lo's latest video, "Dance Again," in which she wore the full leggings.

    At the 2010 World Music Awards, Lady Gaga wore the one-piece swimsuit style.

    Gaga also prominently featured similar studded undergarments in her 2010 video for "Telephone," which look a lot like Kamali's line but are actually by Haus of Gaga.

    So there you have it. Gaga set the trend, and J. Lo, Nicki Minaj, and Christina Aguilera picked it up somewhere along the way. You can't blame them — it's a damn easy way to get press.