Tyler, The Creator, Frank Ocean and A$AP Rocky rock out at Tyler's surprise NYC show

Scott Legato/Getty ImagesWhat happens when Frank Ocean and Tyler, The Creator perform on stage together?

Fans at Tyler’s secret show at New York City’s Webster Hall Thursday found out when the “Yonkers” artist was joined by Ocean, to everyone’s surprise.

New York Times music critic Jon Caramanica recorded a snippet of Frank and Tyler’s epic performance of “Where This Flower Blooms,” which comes from the latter’s new disc, Flower Boy.

A$AP Rocky was also at the event to offer support as an onlooker. He was seen among the crowd wearing a vintage-looking Hootie & the Blowfish t-shirt and his signature braids.

Tyler, The Creator’s Flower Boy debuted at #2 on the Billboard 200 this week, marking his highest-charting album on the chart to date.