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Kanye West is readying a new single and album release, or so we think, and he’s been prepping us with a series of bizarre performances. First there were yeti costumes, then diamond-encrusted masks, now he’s only gone and performed live from a fluorescent pyramid.

The hip-hop star played a surprise New York show last night, mostly inside said pyramid, and used the time to showcase some new tracks from the follow-up to 2010′s brilliant My Beautiful Dark Twisted Fantasy.

You can listen to a clip of one bass-heavy cut below:

And another, more autotune-friendly, one beneath:

Kanye also went on another of his now-infamous onstage rants, this time about celebrity culture, paparazzi and SNL.

Photo via Vine.