The former Girls Aloud star was pictured heading into Fountain Studios on Thursday (29 October), clad in an olive green knitted jumper and black leather leggings.
She kept her hair tied back in a bun and hid behind black sunglasses.
Cheryl, who was clutching her iPhone, was no doubt at the studios to catch up with her groups, who are preparing to perform live for the first time this weekend.
After judges' houses in Rome, where Cheryl was helped by special guest Jess Glynne, the singer chose 4th Impact, Alien Uncovered and Reggie 'N' Bollie to join her at the live shows.
It's not known yet whether a 4th wildcard act will be allowed.
In a twist this year, each of the judges held their usual judges' houses with a guest judge, but didn't reveal which acts had made it to live shows until a special live episode broadcast from Wembley. They revealed their decision in front of the acts' friends and families.
Speaking afterwards, Cheryl said: "I think it was more nerve wracking for the guys. This is their chance. Don't get it twisted. I'm sitting there, looking at the people who didn't make it through. There is a lot of emotions going through your body at that one point but when you're stood there looking at them, I know I made the right decision. I'm so excited and happy to get it going."