Like most of the best hip hop moments, it was a total surprise to the supertrend crowd when Kanye jumped onstage at the Kid Sister/The Cool Kids/DJ A-Trak show this past friday in NYC. Everyone at the Rose Center at The Museum of Natural History went bonkers when Kanye (in a three-quarter-length lapin) walked out to perform “Pro-Nails” with Kid Sister. Nice! Then ‘Ye did some of his own songs, inclding “Flashing Lights,” and brought out The Cool Kids.

Kid Sister looks supercute. I have a photo of me rockin’ a “butter” back in the day somewhere. That’s what we called fingerwaves in Chicago. I’m gonna look for that comedic classic.

(props to Jesse Lee from Dub Frequency, photos spotted at Pitchfork Media, more photos on Pitchfork as well as Fool’s Gold tour dates)

PS: I’m hearing that my fellow Chicagoans The Cool Kids have been getting some Hollywood Hills love from the Joel Maddens and the Justin Timberlakes of the world. Fancy pants. Lol.