It’s no secret that Taylor Momsen is the hardest, most consistently-pantless bitch out there. So when Taylor actually puts her little legs in a pair, my immediate urge is to scream at the top of my lungs, “PANTS-WEARING SELLOUT!!!” Does it make it any better if Taylor was only wearing pants because, you know, like, she had, like, a modeling gig?!? Taylor is the raccoon face of Madonna and Lourdes’ Material Girl line at Macy’s, and as such, Taylor made a promotional appearance in-store in NYC yesterday.

Of course, maybe now we know why Taylor always goes without pants. Because she has no idea how to pick a flattering pair. Seriously, this girl has a pretty good, slender, coltish body, and those pants make her look like she’s got a middle-aged pancake ass. And the belly shirt? Well, how Friends circa 1995 of you. Apparently, the whole event was mayhem, as pantless tween girls (who probably think Taylor is, like, the coolest, totally, like, ever) created “PANDA”-monium.

To celebrate yeserday’s Material Girl launch at Macy’s, the “face” of the line, Taylor Momsen, and her band The Pretty Reckless, made a musical appearance at the store. And while we thought the morning’s promotional events were crazy, the evening concert took the frenzy to a whole other level.

A battalion of press photographers were far outnumbered by the hordes of excited teenage fans, many of whom were under the impression it was in fact Madonna herself who would be performing. While the Pretty Reckless is actually a pretty good jam, would could have noticed?

By the time Momsen took a late start on the stage, we were sandwiched by a group of teenagers who’d taken over the press section, which was not-so-conveniently located to stage left. An inexplicable crush of camera phones and squeals ensued, bodies carelessly shoved us into a clothing rack, and with hardly any time to catch our breaths, we were kicked out of the press section by security as we stammered to explain our credentials.

[From NBC NY]

Those poor tweens. They’re going to be so embarrassed they did that in a year. For real. Also: doesn’t Taylor look like “Harley Davidson Barbie”? Or like she’s dressed up as the butch biker from The Village People. For Halloween.

Taylor Momsen on August 3, 2010. Credit: Fame and WENN.