Louis Tomlinson's fans are freaking out!
See some of their concerned reactions (below):
[Image via Splash News.]
Yeah, we think Rihanna is crazy! Crazy talented!
And Eminem is no slouch either!
Seeing them live is one fearsome reminder of just how incredible these two are together!
Ch-ch-check out the video (above) to see their flawless performance of mega hit Monster at the MTV Movie Awards!