Katy Perry thinks Miley Cyrus has ''an incredible voice''.

The 'Roar' hitmaker is very excited for the 20-year-old's new album 'Bangerz' to be released on October 8 and admits she would consider collaborating with the 'Wrecking Ball' singer in the future.

Katy, who will celebrate her 29th birthday next month, told E! News at the iHeart Radio Music Festival in Las Vegas on Saturday (22.09.13): ''I don't know...maybe...she's got an incredible voice.

''I have heard her sing 'Wrecking Ball' before that single came out and I tweeted about it a long time ago before it even came out and I was just so excited about it for her. She's got a set of pipes that are incredible.''

The 'Part of Me' singer voiced her support for Miley, who was recently criticised by a number of other artists including Pink, Elton John, Cher and Jessie J, following her raunchy performance at the MTV Video Music Awards in New York City last month, which saw her gyrating up against Robin Thicke while suggestively touching herself with a foam finger and strutting around the stage with her tongue hanging out while wearing just a latex bikini.

Justin Timberlake also had some kind words for Miley recently but he admitted while he admires her as an artist, he isn't entirely convinced by her new image.

He previously said: ''I don't know that I have a definitive thought in one direction or the other about it. I think she's really smart, and I think she's really talented.

''I'm not saying I agree with the presentation, but I also feel like every 10 to 15 years we pick somebody that this is what we're going to do with them, is we're going to make them the model of who we want our daughters to be or not be.''