The 18-year-old singer had originally tried out for Gary Barlow and Kelly Rowland on last year's X Factor, and made the top 16 in the girls category.
Gary said at her original audition in Cardiff last summer, where she performed Etta James' At Last: "I think we've found a star"
However despite a standing ovation at Wembley’s bootcamp with her performance of Cyndi Lauper’s 'True Colours', Chelsea didn't make it through to the live shows.
Returning to work for her dad in an office, the brunette beauty decided she'd be better suited to Britain's Got Talent, and went in front of the judges at auditions in London earlier this year.
The teenager received a standing ovation from the crowd, as Simon Cowell, Alesha Dixon, David Walliams and guest judge Carmen Electra watched on.
Alesha told her: "I can see how much this means to you, it was an emotional experience."
But having wowed before and still got sent home, will it be second time lucky for Chelsea?
Other acts to impress the audience at auditions in the show's capital including 20-year-old street dance comic Ryan.
Performing a bizarre routine, Ryan got the crowd on his side as he mimed to sound effects, but the panel wasn't sure of the act.
After some gentle persuasion from his fans in the audience - in the form of chanting his name over and over again until producers relented and he was brought back on - the youngster was given a second opportunity to try and win them over, but will it be enough?
The new Britain's Got Talent panel, which sees the return of Simon Cowell and new judges Alesha Dixon and David Walliams, seemed hard to please and on the lookout for something special at the try outs at London's Hammersmith Apollo this year.
Even note perfect classical singers that would've given Faryl Smith a run for her money weren't deemed "current" enough to make the grade this time.
Those who do manage to make it through the auditions will be whittled down again next month to just 45 acts that will compete in the live finals.
The Britain's Got Talent 2012 auditions air from Saturday, 8PM on ITV1.