Sia may keep her face under wraps during performances, but when it comes to her feelings on certain artists in the music industry, it's clear the singer (who doubles as a songwriter) has no problem putting it all out there.
Like the fact that she didn't really vibe with Katy Perry at first when they tried to write a song together. "She's also quite dominant, and she's extremely analytical," Sia told Rolling Stone. "I actually quit within the first hour of our first session. I was like, 'Can we both agree this doesn't work? Like our whole songwriting dynamic?' And she was like, 'I love it. It's like a puzzle to me. It's like a crossword.' And I was like, 'But this is boring for me. The analysis is totally boring for me. It feels like the enemy of creativity.'" Gulp.
Surprisingly, that honest convo was just what they needed to make things happen. "It was so cool to be able to have that conversation on why we wrote in such entirely different ways," she continued. "I'm glad I didn't give up on it because I actually did get a song out of it, and we also really had a laugh because we were able to be authentic."
As for Beyoncé, Sia said she wrote 25 songs for her most recent self-titled album while they were in the Hamptons and only one made the record, "Pretty Hurts."
"Isn't that amazing?," the "Elastic Heart" singer said. "The process is like a writing camp, essentially. She flies us all in and puts us all up. We all live in a house together — like five producers and five topline writers. She visits each room and will contribute and let us know what she's feeling and what she's not feeling. Lyrically, melodically, anything. She's very Frankenstein when she comes to songs. She'll say, "I like the verse from that. I like the pre-chorus from that. Can you try mixing it with that?" In the end, she had maybe 25 songs of mine on hold, and I was very excited to get a couple of them back. Definitely one is on the album."
And then there's Kanye West. Sia said she went into a writing session with him to write for Rihanna, but he never showed up. "They'll entice me into a session by saying, "Rihanna will definitely be there" or "Kanye will definitely be there," but it's hilarious because I turn up and, almost always, they never come. So I went into the studio to write for Rihanna with Kanye and neither of them showed up and stayed for less than an hour."
"They had two tracks. They told me what they had wanted. There were notes from Kanye, and I can't even remember what they were. I remember I just raced in and raced out, and I thought there was something about the chorus that seemed fun about this song, but I never thought it would see the light of day. My manager pushed for this song to be on the record, but I don't care about it." The song ended up being "Reaper," which Kanye co-wrote (via the notes, natch).
We can't get enough of Sia's honesty, and while blunt, it's probably one of the reasons stars keep coming back to work with her. That - and she's incredibly talented and has no problem humbling herself when working with someone else. "I try to check my ego at the door and be of service to them and allow them to be the artist," she added.