As a competitor, it is always good to have winners in your corner.
They could barely get through their performance of "Say Something" on Thursday after learning that they'd won the third season of The X Factor.
And no wonder, given the churn of emotions Alex & Sierra were feeling.
"I was like, 'Man, this is going to be okay.' But then the song started and all those blue lights in the audience, and I don't know. It just really got me," Alex Kinsey told PEOPLE after the show. "It was really, really overwhelming. Then when everyone ran out, I lost it."
His partner and girlfriend, Sierra Deaton, was the strong one – until she, too, got overwhelmed.
Kelly Rowland's engagement ring might be big, but the X Factor judge tells PEOPLE that her wedding will be just the opposite.
The former Destiny's Child singer, 32, who got engaged to her boyfriend and manager, Tim Witherspoon, over Skype, says that while she hasn't set a date yet, she knows just what kind of ceremony she wants to have.
"I think we just really want it to be us and our pastor. That's it," she says. "I mean, we are the only two that's going to be in the marriage."
Demi Lovato is leaving The X Factor, a source close to the singer tells PEOPLE.
The reason? "She plans to spend next year completely focused on her music," says the source.
"She had a great run and a good time," says the source. But the show's demanding schedule conflicts with the singer's plans for 2014.
Lovato, 21, who has served as a judge for two seasons, is about to headline her first arena tour, which kicks off Feb. 9 in Vancouver and will also feature X Factor alums Cher Lloyd, Little Mix and Fifth Harmony.
Somebody had to go home on Thursday's The X Factor results show, but it most certainly wasn't going to be Alex & Sierra.
America voted to send the pair – who wowed the judges Wednesday night with their flawless rendition of Sara Bareilles' "Gravity" – through to next week's finale.
"We just want to thank everybody that's voted. This is incredible," a humble Alex said upon hearing the news, while the group's mentor, Simon Cowell, gushed about the talented singers.
"I think they've been incredible to work with," he said. "They've gotten better every single week and the finale would not be the same without them."
The X Factor's semifinal round Wednesday night certainly had "Gravity."
The final four performed three times – first came a song chosen by viewers, then a competitive duet and a final song meant to convince America to vote them into the finals – but a few performances stood out, earning standing ovations from the judges.
The boyfriend-girlfriend duo Alex & Sierra ended their night singing "Gravity" by Sara Bareilles, and their performance not only made the judges and audience rise from their seats but moved Kelly Rowland and Demi Lovato to tears.
Demi Lovato has been very open about the issues that landed her in rehab three years ago, but now reveals shocking details about the extent of her addiction.
The X Factor judge was still a teenager when her problems spiraled out of control, and she reveals in an interview with Access Hollywood that she went to desperate measures to make sure she had drugs with her at all times – even when she was flying around the world on tour.
"I couldn't go 30 minutes to an hour without cocaine and I would bring it on airplanes," the 21-year-old revealed.