Taylor Swift has been joined on stage by so many celebrity friends over the course of her 1989 tour that the constant cameos have inspired a hilarious viral video.
But when she was visited by an unwelcome guest during last night's show in San Diego, her security team jumped in and whupped the dude's ass - and Taylor literally didn't miss a beat.
This marks the second time in the past few weeks that Taylor was nearly attacked on stage during a concert.
Remarkably, both times she kept right on singing. We guess when you've shared a stage on Kanye West on multiple occasions, you're ready for anything.