Ariana Grande is certainly making it big in the music industry. After being hailed as the next Mariah Carey, another A-list singer is praising the "Baby I" singer. Katy Perry crowns Grande the "Best Voice in Pop." Here's everything else Katy Perry had to say about Nathan Sykes' talented and not to mention beautiful girlfriend, Ariana Grande.

After selling over a million copies for her debut album, "Yours Truly," it's not surprising that Ariana Grande has got the attention of "Roar" singer, Katy Perry. In an interview with MTV News, Russell Brand's famous ex-wife praises Grande for her awesome vocal prowess.

"I love her. I think she has the best female vocal in pop music today," stated Perry, adding, "She has literally the best voice, the best voice live. She kills it. She's so good."

While some other critiques may claim Ariana is the next Mariah Carey, Perry states Grande's singing is "different" and unique.

"I got to hang out with her and listen to her record before it came out because I wanted to reach out to her and be like, 'Hey girl, you're just about to go through a whirlwind. Let me give you some tips if you ever need anything - a hairstylist, makeup artist, whatever,' " continued Perry, adding, "And she's the sweetest girl and I just wish her the best."

Grande appeared to have heard the touching message that she couldn't help but tweet all about it.

Thank you so much @KatyPerry for being a true friend & an inspiration to me i love you http://t.co/OCRQJD22EW everybody buy #PRISM

— Ariana Grande (@ArianaGrande) October 15, 2013

Check out the slideshow to see more of this up and coming singer, Ariana Grande, whom Katy Perry has named the "Best Voice in Pop."

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