Singer Sarah instantly won her place in this week's live shows when Simon Cowell hit the Golden Buzzer for her back at the auditions.
But she failed to top the public vote, with viewers instead putting pianist Tokio as well as kid comedian Ned Woodman through to Saturday's final.
However it may not be the last we see of her - even if she doesn't get the wildcard - as Tokio has revealed plans to collaborate with the teen.
"When there was me and Sarah, I thought she would be the one to go through," Tokio admitted in a chat on ITV's Lorraine this week. "I know she's going to do great things."
He teased: "We are going to do some music and some tracks.
Simon was visibly stunned by the result on Wednesday night, and afterwards he shared his thoughts on ITV2 spin-off Britain's Got More Talent.
"Fair play to the two of them," he said. "Ned was really funny, I think Tokio’s a real star, but that’s what happens on these shows.
"I meant what I said, I do think Sarah’s probably the best singer we’ve ever had on this show."
This series has seen a major change to BGT's format, with the judges no longer getting a say in the final line-up - other than a single 'wildcard' place.
Simon said it's "probably good" that the power is in the hands of the public.
However, he admitted that if it was up to him, he'd have sent home 9-year-old Ned, who has proven a hit by roasting the judges in his comedy act.
"I would have picked Tokio and Sarah," Simon said. "Ned, he’s really funny, but I think at this stage in their lives it’s more important that those two go through to the final."
There is now just one more semi-finals to go before the judges decide which eliminated act will return as their wildcard.
Britain's Got Talent continues tonight at 7.30pm on ITV.