Katy Perry is why music industry is in turmoil, says Linda Perry

Linda Perry has blamed Katy Perry's style of music for declining album sales.

The rock star and songwriter, who has penned hits for Christina Aguilera, Pink and Gwen Stefani, described Katy's Teenage Dream album as "s**t", using it as an example of why the music industry is in "turmoil".

"I'm not a huge fan of Adele but that's a solid record... and it's selling. That means people are still buying records," she said.

"It's the crappy, like, who wants a Katy Perry record? I'm sorry, but you're going to get the two songs that are probably the hits that are good, but the rest of the album is going to be crap. It's going to sound like s**t.

"So people download the single, and that's it. She's great for what she does, but she's not reinventing the wheel, she's not giving substance, she's just giving microwave popcorn to feast on right at this moment.

"She's not looking to change the world musically, so all the power to her. I'm not saying that's bad, I'm saying it's not what I participate in. That's part of the reason why the music business is in turmoil."

Katy Perry recently matched Michael Jackson's chart record by gaining five number one singles in the US from one album.

> Katy Perry: 'Breaking chart record is bigger than my dreams'

Watch Linda Perry discuss Katy Perry below: