The ‘FourFiveSeconds’ singer, 27, is working on her eighth studio album but declined a track co-published by the superstars despite their incredible writing credentials.
Sia, 39, – who’s got already released ‘Alive’ which she also penned with Adele – said: “We wrote three songs by 50 % days and undertake and don’t made the cut which was one of these.
“I asked [Adele], ‘Do you mind if I pitch it to, say, Rihanna?’ And she said, ‘Yeah, but could you take my vocal off it because I don’t want my vocal skating out there with a demo’.
“So I went and re-cut the vocal and everybody during my life was like, ‘You can’t give this away to anybody’.” Check Hello sheet music piano notes page.
Despite others insisting she kept the track for herself, she offered it to Rihanna to be with her new album ‘Anti’ but doesn’t think it absolutely was “edgy” enough to be with her.
She told Ryan Seacrest: “Well actually I believe she did [get the chance to consider it] and he or she passed.
“We sent it to her, however it’s not really her so I are not aware of why I thought that. It is a smash, but she’s a tad bit more edgy.”
The track – titled ‘Bird Set Free’ – will appear on Sia’s seventh album ‘This is Acting’ caused by be released in January.