Los Angeles - Miley Cyrus wanted Gwen Stefani to sing on her track SMS.
The We Can't Stop singer eventually recorded the song with Britney Spears, but had also considered duetting with the No Doubt star or rapper Nicki Minaj.
Sean Garrett, who co-wrote the track, told MTV: "The first name that we tossed around was Gwen Stefani. We were talking about Gwen because you know Gwen got that edge too, but that's how God works. We were throwing around those ideas.
"Nicki, we were talking about putting Nicki on there too. That would've been nuts, but I think that's how God works, this was absolutely the right one.
"[The song] is like five different things, it's hip-hop, it's the girls, it's a female anthem, Salt-n-Pepa, Britney and Miley."
Meanwhile producer Dr Luke reportedly made a bet with Miley that her single Wrecking Ball wouldn't be a Number One single in the US, which he lost, meaning he had to buy her a luxury toilet worth $10 000.
Miley tastefully, said of the bet: "I'll think of him every time I go."