Nicki Minaj: Surprise Guest at Kanye West Concert!

Guests at Kanye West‘s sold-out concert on Tuesday night (November 23) at NYC’s Bowery Ballroom were in for a treat!

Nicki Minaj hit the stage and made a surprise appearance while Kanye was performing “Monster,” off his latest album My Beautiful Dark Twisted Fantasy.

Tickets for the concert went on sale the same day at noon and reportedly sold out in seconds!

Even though they retailed for $100, some on Craigslist.org and eBay were selling them $5,000 and even $100,000, according to the Wall Street Journal.