Michael Buble' is engaged!

Michael Bublé is getting hitched to his Argentinian actress girlfriend, Luisana Loreley Lopilato de la Torre – and has been engaged for the last two months, his longtime rep confirmed exclusively to PEOPLE Magazine. "Michael proposed to his girlfriend, Luisana, in November, in front of her family in Argentina," rep Liz Rosenberg says. "They're ecstatic. They're adorable, in love and laugh all day long." Lopilato, 22, a film and TV actress who stars in the hit Argentinian soap opera, Atraccion x 4, accepted his proposal – and loves the diamond engagement ring from Vancouver jeweler Minichiello that Buble, 34, gave her to seal the deal, a friend of Bublé's tells PEOPLE. "He designed the setting himself. He's very proud to be engaged to her. They met after one of his concerts in Buenos Aires in November 2008. "They met at a party the record company threw for him after his show in Buenos Aires," says the friend. "The head of the label wanted to introduce Michael to Argentina's most famous actress. When he met her, he said it was love at first sight."