The first show will air on ITV1 on Saturday 31 August at 8pm and the next one will be broadcast on Sunday 1 September, also at 8pm.
This year, as the talent series marks its 10th year on our screens, hopefuls will be shown first having a face-to-face audition with judges Gary Barlow, Nicole Scherzinger, Sharon Osbourne and Louis Walsh.
Providing the contestant receives three 'yes' votes, they will then go through to the next round - a performance in front of 4,000 audience members at Wembley Arena.
If they manage to impress, they then go to bootcamp. Exciting!
A statement from the X Factor team reads: "To celebrate the 10th series of The Greatest Show on Television (you know it's true) and to make it more exciting for you all at home we have made a few nifty changes.
"First up, the room is BACK as part of our brand new X Factor double-whammy audition weekends.
"That's right, budding hopefuls will be doing their best to impress the judges in a face-to-face, eyeball-to-eyeball audition. It's going to be intense, emotional, highly-charged and just plain scary – and the contestants will need to receive at least three 'yeses', before they can get through to the next round.
"If they do, then they'll face a slightly larger audience. 4,000 to be exact, at London's Wembley arena where they could become one of the lucky ones to make it through to Bootcamp."
If you can't wait until then, why not watch the official trailer below!