On Tuesday night, concertgoers at Chris Brown's Party Tour stop in Anaheim were gifted quite the treat when Kendrick Lamar made a surprise appearance roughly halfway through the show. Lamar emerged from behind the stage to perform "Humble." Due to the abundance of camera-phones everywhere at all times, a fan captured the moment the platinum artist was recognized by the crowd.

Additionally, Brown posted a couple of pictures showing his gratitude to his guest on his Instagram account:

 

🙏🏽

A post shared by 🤖👽🌕 (@chrisbrownofficial) on May 17, 2017 at 1:24am PDT

 

A post shared by 🤖👽🌕 (@chrisbrownofficial) on May 17, 2017 at 1:24am PDT

You can catch Kendrick on his own Damn Tour when it kicks off in Phoenix on July 12. You can find all the dates and locations for that run right here.