TORONTO -- Pharrell Williams says the world has only seen "two colours of a colour wheel" when it comes to his friend and collaborator Miley Cyrus.

The superstar singer-songwriter and producer teamed up with Cyrus on her upcoming album.

The former Disney star has made waves with her barely-there ensembles and provocative videos.

She's also raised eyebrows with her fondness for "twerking," most recently at the MTV Video Music Awards where she showed off the suggestive, butt-shaking dance move.

Williams described Cyrus as a "professional" who is "just having fun." And he sees a long future in store for the 20-year-old pop sensation.

Cyrus's new album "Bangerz" is due out on Oct. 8.

"She's really eclectic, she's a Sag(ittarius), so she's young and fiery and has been doing it for a long time," Williams said in an interview at Holt Renfrew's flagship Toronto location in support of his pop-up shop and collaborative line with the retailer.

"(She) has a really great voice and she kind of knows what she wants. So I wouldn't rush to judgment so fast. I would sort of pace myself because you guys are in for a long journey."

So does Williams feel people have been rushing to judgment when it comes to Cyrus?

"I don't know, I couldn't tell you. To each his own, in terms of your opinion," replied the hitmaker, who lent his vocals to two summer smash hits -- Robin Thicke's "Blurred Lines" and Daft Punk's "Get Lucky."

"I can tell you what I know about her voice. I can tell you what I know about her songs. And I would just say I think it's important to point out that her dad is Billy Ray Cyrus, so she knows a lot about that genre and does it well," he added in reference to her country music lineage.

"I mean, you've got to hear her. Just go online and see her cover 'Jolene.' And speaking of which, her godmother is Dolly Parton. So I wouldn't rush to judgment so fast. I mean, twerking is like a household phrase because of who? Right?"

Williams also pointed to the record-breaking successes on YouTube for the lead singles from "Bangerz" as further proof of Cyrus's viability as an artist.

The clip for Cyrus's "We Can't Stop" became the fastest to reach 100 million views across Vevo platforms, reaching certified status 37 days since its June premiere.

Cyrus eclipsed her own record with the video for the anthemic "Wrecking Ball" -- which features the pop star in the buff -- and hit the 100-million mark within just six days of being posted on Sept. 9. "Wrecking Ball" has also catapulted to the No. 1. spot on the Billboard Hot 100 chart.

"That girl is a professional," said Williams. "She's just having fun."