Britney Spears is back and she's brought a club hit with her.

Released on Friday, the song features vocals from both vocalists and significant riffs from Spears. It opens with a lyric from John's song "The One" and is a lively, bass-heavy rendition of his classic "Tiny Dancer" from 1971.

Britney Spears performs with Elton John for the first time since the end of her relationship

Spears also talked about how the conservatorship took away her sense of independence.

I'm afraid of people and the business after what I've been through! In a caption on her since-deleted account, Spears said.

She's been betrayed so much and hasn't really been in the public eye officially for so long, so there's a lot of anxiety there, he said.

I was shattered when I became sober," he claimed. Because I don't want to see any artists in a bad place, I now have the experience to be able to counsel and assist others.

John stated in the Guardian interview that he really related to Spears' path.