Comic Jack was in second place while the Luminites finished in fifth, having reprised her audition song Hurts So Good.
According to The Sun, Jack is set to earn £1 million by the end of the year with a six-figure deal from Simon's Syco company for a book
“Jack could be a huge star," a source said.
Meanwhile, Simon is said to want to turn the Luminites into the British Black Eyed Peas.
The four piece, who perform with guitars and beat boxing, wowed the judges and public time and again throughout the competition.
"Simon really rates Luminites. Every time he's watched them perform he's been blown away," an insider said. "He thinks they're fresh and there's a real gap in the market for them.
"He's not seen an act like that for a while."
Browse pictures of the Britain's Got Talent final below...