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20 August 2012, 11:27 | Updated: 20 August 2012, 13:06
The 'Call Me Maybe' is understood to have been dating the musician for over a year.
Carly Rae Jepsen has been dating musician Matthew Koma for over a year, according to reports.
The 'Call Me Maybe' star has previously revealed that she had a boyfriend, but kept the identity of her beau a secret.
However, People magazine reports that Matthew recently introduced himself as Carly's boyfriend and the pair were also apparently spotted together at a launch party in New York.
"He introduced her as his girlfriend," a source told the magazine. "He seemed really excited about it, and she was smiling from ear to ear by his side during the introduction.
"He seems like a really nice and personable guy."
Carly Rae Jepsen and Matthew Koma, who are said to be dating, are spotted leaving the Sunset Marquis: (picture: Splash)
In an interview with the magazine earlier this year, Carly spoke candidly about her relationship, apart from giving her boyfriend's identity.
"He makes me laugh every day and not always on purpose, but he's my guy," she said. "He's been really amazing and very supportive."
Carly shot to fame earlier this year with the single 'Call Me Maybe' and was among the performers at Capital FM's Summertime Ball at Wembley Stadium in London in June.