11/18/2013 07:02 pm ET Updated Nov 19, 2013

Demi Lovato On Miley (And Growing Up): 'I Didn't Twerk, I Just Went To Rehab'

Demi Lovato was surprisingly candid -- in the best way possible -- when talking about personal friend and fellow post-Disney pop star, Miley Cyrus, on an episode of "Katie" that will air this week.

"[Miley] has such an incredible voice that is overshadowed by some of the things she is doing," Demi said, adding: "She's been one of my friends since I was 14."

When probed by Katie on whether she thought Miley's goal was attention-seeking, Dems fired back:

[Miley] knows what she's doing. People are talking about her. People are talking about her VMAs performance. Now 'twerking' I think is in the dictionary? She's a businesswoman, after all, and that's what she's doing. Like I said, power to her. I think the world kind of needs to get over the fact that she was Hannah Montana when she was 16 or whatever.

The best bit is at the end of the clip, when Demi is asked if she relates to Miley's experience growing up in the limelight:

My transition was easier because I went straight to rehab. I didn't twerk. I just went to rehab! ... Nobody knows [Miley], and nobody really knows who I am. Same with Selena and Jonas and everyone who has grown up in the public eye. We're actually adults now. I'm 21. What?! That's crazy! I'm nowhere near the same person I was when I was 15 or 16. Thank God. But I've learned a lot and I've grown up, and we're all in the process of doing that. So, go easy on us, America!

In the interview, Demi also reflects on her new book, “X Factor,” “Glee” and the recent loss of her father. The episode airs on November 19.