When the boy band pre-recorded their song 'Story Of My Life' last week to be broadcast on the show tonight (24 November), reports say Niall fell for Tamera "instantly".
Today's Mirror reports that Niall has been sending Tamera messages begging for a date!
And Tamera seems to confirm this story, saying: "Yes, Niall and I have been talking in private. He's the most famous person in my phone after Nicole Scherzinger. I hope he fancies me – he's cool.
"He asked for my number and we've been talking."
Last night, Kent-born Tamera, 16, sang James Arthur's single 'Impossible' and failed to impress the judges after forgetting the words.
Louis Walsh told her: "You have the potential to be a world class superstar, but what happened to the words? You can't do it anymore."
While fellow judge Gary said: "It was hard to watch. I don't know how you solve this problem. It's excruciating watching this happen again... It was in the wrong key and forgetting the words, it was really difficult to watch, I'm sorry."
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Watch Tamera Foster sing 'Impossible' during live week seven on The X Factor: