Louis Tomlinson's fans are freaking out!
See some of their concerned reactions (below):
[Image via Splash News.]
That's a BIG roar to match!
While it's awfully hard to match Katy's perfect touch on the song, Selenita certainly brought her own fierceness to the powerful hit.
We might even say Selenita is a little lioness in training! We can't wait to hear her continue to roar for years to come!
[Image via DB/WENN.]