"Omg my Facebook was hacked lol.... And by lol I mean..... Get a life a--hole," she tweeted after learning what had happened.
The 20-year-old singer followed that up with, "If you were awake during any of that nonsense I apologize it wasn't me lol really sorry :) have a good night everybody."
As for the posts in question, they have since been deleted but reportedly included one that read, "Hello everyone. I have a confession to make. I'm struggling with an addiction to coke. I plan on going to rehab, and I'll be inactive for a while. I will be canceling my future tours and shows," while another apparently said, "btw Miley Cyrus needs to twerk her ugly ass off a cliff. Lol."
Meanwhile, E! News recently learned that Ariana is reportedly dating Nathan Sykes of The Wanted. The two just debuted their duet, "Almost Is Never Enough," for the film The Mortal Instruments: City of Bones.
Ariana's new album, Yours Truly, will be released on Aug. 30.