Jewel thinks that Kelly Clarkson is a “freak of nature.”

The You Were Meant for Me singer and Kelly recorded a new rendition of Jewel’s classic hit Foolish Games for her newly released Greatest Hits album.

Jewel was eager to work with the Stronger crooner for quite some time and is in awe of Kelly’s range.

"I really wanted to sing that song with a great vocalist, and she was my first pick," Jewel told MTV News.

"She's a hoot in the studio, she's really a fun hang, really down to earth and she's kind of a freak of nature. I mean, you go in there, and I was singing this long note and I was holding it as long as I could and as high as I could and I was on my tiptoes doing it and she walked in there and was like, that was great, and then she just did a whole three, you know, steps above it and just sailed through it like it was nothing. She's a freak of nature."

Jewel was also impressed with Kelly’s sense of camaraderie.

Their personalities blended well together.

"Kelly is great, you know she doesn't have a big ego or anything, she wants to make me sound good and I'm the same way, I want to make her sound good so we kind of wanted to work out parts that hopefully benefitted each other and yeah, it was fun,” Jewel explained.

The musician has been in the entertainment industry for decades.

She believes that now is a great time to be putting out her Greatest Hits record.

"I think 20 years in is a good middle point," Jewel said.

"I also feel like often, like with greatest hits, you can just go make your own on, you know your iPod or whatever. So the reason I feel validated in doing mine is a lot of [the songs] are rare radio edits that you can't get anywhere else."