Matthew Koma had just put his wife Hilary Duff in embarrassment following an encounter with one of her ex-boyfriends while out on a dinner date.

Carly Rae Jepsen planted a sweet kiss on boyfriend Matthew Koma Sunday at the 2013 Billboard Music Awards at the MGM Grand Arena in Las Vegas. Pop sensation Jepsen took home the award for Top Digital Songs Artist at the awards ceremony and received eight nominations. Jepsen, 27, met Matthew Koma, 25, while working on her second album Kiss, released September 2012. The two have been dating ever since.

"Call Me Maybe" singer, Carly Rae Jepsen BF was kept under-wraps for much of the time the pair has been dating. However, Carly Rae Jepsen opened up to People magazine about her "easy-going" relationship with boyfriend, Matthew Koma, the Inquisitr reported.

Carly Rae Jepsen admitted in May she has been dating someone for the past year, but refused to identify who her boyfriend was at the time. The Canadian pop star has stepped out with the mystery man twice in the past week and People reported that Jepsen been dating rock musician Matthew Koma. "He introduced her as his girlfriend," a source told People. "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." The music-making couple held hands in public at the GetGlue HD Launch Party at The Standard in New York City. Jepsen's parents joined the pair after the event for dinner after the party at The Stanton Circle.