The 17-year-old singer came third on the talent show, but she's come out on top now.
Amelia has signed a three-album deal worth £500,000, according to the Mirror.
She's done the deal with Xenomania, which is the powerhouse behind Girls Aloud's songs.
It's been set up as a new subsidiary of Sony, with Amelia as its first signing.
[Related article: Cheryl Cole hits back at Cher Lloyd?]
[Related article: Gary Barlow set for X Factor pay rise]
A source said: "Amelia will be the perfect pop star and has fantastic hit-makers who were behind some of The Saturdays' and Girls Aloud's best songs. It'll be a great combination."
Amelia's been hard at work in the studio in Kent. We can't wait to hear what she brings out.