VIDEO: POTTER WATCH: Rachel Triumphs in X FACTOR '4-Chair' Challenge

29-year old 'Evita' star Rachel Potter, currently bartending to support her dream of becoming a recording artist, hit the stage on last night's THE X FACTOR, hoping to nab one of the four spots on mentor Kelly Rowland's 'Over 25' team.

Unfortunately Potter was feeling under the weather and did not give her strongest performance of Beyonce's 'Irreplaceable.'

"How do you feel about that performance?" asked Judge Demi Lovato at the end of the song, "Because that was kind of rough." Echoed Rowland, "I expected you to blow everyone away like you did in your audition. This girl has pipes. I was actually really shocked that your highs were not as clear as they usually are. Can you still hit them?"

Answered an eager Potter, "Absolutely I can do that. That's what I do best."

Rowland decided to temporarily give the singer one of the four spots on her team, however she still had to face six more competitors, each trying to take over her coveted seat. In the end, Rachel held her ground and joined three others as part of Kelly's Final Four. Check out her performance from last night's show below!

Rachel Potter starred in the first Broadway revival of Andrew Llyod Webber's Evita in 2012 in the role of Juan Peron's mistress. She wowed audiences with her stirring rendition of the ballad "Another Suitcase in Another Hall." The actress made her Broadway debut as Wednesday Addams in The Addams Family, with music by Andrew Lippa.

Her other theater credits include Glinda in the national tour of Wicked. She was also a contestant on the MTV reality series 'Legally Blonde: The Search for Elle Woods.'