The 17-year-old from Coxhoe, Durham, needs votes from the viewing public to progress in this weekend's live shows.
One contestant will be deemed not "diva" enough to make it through to another week as viewers vote on who to eliminate from the narrowing competition.
Results of the public vote will be announced tonight, after the remaining performers were tasked last night with putting on their best "diva"-inspired show.
Sunderland at Wembley: Fans raise 'virtual tip jar' fundraising target to thank staff at Covent Garden pub after smashing original total
19 Sunderland locations hosting Queen's Platinum Jubilee street parties
Police appeal for help in finding missing Sunderland man Anthony Scott
Sunderland at Wembley: London pub landlord thanks SAFC fans for ‘bumper weekend’ after League play-off final victory over Wycombe Wanderers
Sunderland at Wembley: 'We're looking forward to welcoming them back next year' says brewery boss as fans' behaviour in Trafalgar Square praised
The competition is down to 10 acts as it entered its third week of live stage shows on ITV1.
Sam, who only made it through thanks to a wildcard after being eliminated at the judges' houses stage, sang Michael Jackson's Earth Song.
After her performance she Tweeted: "I absolutely LOVED EVERY SECOND of that performance!! Thanks for everything guys!"
In another Tweet she said: "Massive thank you to everyone who shared the stage with me tonight. You guys are amazing!
And in a third she said: "The competition is soooooo tough! And everyone is so talented. I need your help guys, every vote counts! I don't want my journey to end!"
* The X Factor continues with live results of the public vote on ITV1 at 8pm tonight.