The trio will release their debut single later this year and are currently in the studio writing and recording new material.
The group consists musician/songwriters Eddie Brett, Sonny Jay and Te Eugene, who formed in 2010. They impresssed judges and viewers on this year's Britain's Got Talent television show with their witty self-penned song Lovesick. They made it to the final programme of the show where they performed a second original song, Honest.
Brett said: "We are buzzing, this is everything we've been working towards and now it's happening we are so happy!"
Jay added: "Syco is a fresh label working with some great acts and making big movements globally. We are really excited to join the family."
Prior to Britain's Got Talent, Loveable Rouges performed at gigs around the UK and they won The Jack Wills Unsigned Competition 2010.
The trio has amassed over 6 million views on YouTube and also have a strong social media following.