The Finland native has inked a deal with Sony Music UK and Sony Music Finland, after losing out to Matt Terry in the final of the ITV talent show earlier this month.
Saara told The Sun she will be recording a song that Sia has written, adding she is “working with some of the best songwriters in the world”.
“Oh my god, it’s just insane,” she told the paper. “I think Sia is a pretty good reference for me because her way of singing and the way she composes the melodies and writes the lyrics is very similar to what I’ve always done.
The star also said she may be teaming up with Adam Lambert, after duetting with him during the ‘X Factor’ final.
It had been expected Saara would sign a deal with Simon Cowell’s record label Syco, but her new deal will still keep her in the Sony family, which Syco is a part of.
It was announced earlier this month that winner Matt would be signed to Sony’s RCA label, instead of Syco, with a source telling The Sun: “Simon and Sony have had a think and believe that Matt is very much an artist in the mould of Olly Murs.