Kanye West (and Bruce Springsteen) were last-minute additions to the World AIDS Day concert in Times Square on Monday night after U2's Bono had to cancel -- and it looks like they put on quite the show!

"New York City, you are now rockin’ with Yeezus," West told the audience, before performing a slightly botched version of "Stronger," followed up by "Touch the Sky," "Power," "Jesus Walks" and "Black Skinhead."

Bono was still recovering from a nasty cycling accident, and Kanye (along with Springsteen and Coldplay's Chris Martin) were announced earlier that day as the replacement performers. Springsteen and Martin performed with U2, and at the end of the show everyone gathered together onstage ... check out more pics in the gallery below!