Whoa, Canada!

Avril Lavigne and Nickelback frontman Chad Kroeger's relationship has been so quiet that few even knew they were dating. Now, after a six-month courtship, the Canadian rockers are engaged to be married, Lavigne's rep tells PEOPLE exclusively.

Lavigne, 27, and Kroeger, 37, first got together in February to co-write a song for Lavigne's upcoming fifth studio album.

"A romantic relationship blossomed as they spent time writing together," a Lavigne pal tells PEOPLE.

On Aug. 8, Kroeger popped the question, presenting Lavigne with a 14-carat diamond sparkler.

"He makes her so happy," a family source tells PEOPLE. "Both of their families could not be more excited."

It will be Kroeger's first trip down the aisle, and the second marriage for Lavigne, who split from Sum 41 frontman Deryck Whibley in 2009. She had also dated Brody Jenner.

滬江娛樂快訊：超人氣女歌手艾薇兒·拉維尼與交往六個(gè)月的男友查德克·羅格訂婚了！查德克·羅格是加拿大五分錢樂隊(duì)的主唱，也是艾薇兒新專輯的制作人，兩人是在創(chuàng)作新專輯中產(chǎn)生了愛情的火花，相處半年后終成正果。

今年8月8日，這位37歲男歌手向艾薇兒求婚，求婚鉆戒就有14克拉。在此之后，艾薇兒家人表示：“他讓艾薇兒很幸福，我們雙方家庭都不能再興奮了。”

這是查德克的首次婚姻，對(duì)艾薇兒而言，在2009年與Sum41主唱離婚后，將第二次步入婚姻殿堂。

五分錢樂隊(duì)簡(jiǎn)介：

五分錢樂隊(duì)(Nickelback)，是成立于亞伯達(dá)哈納的加拿大搖滾樂團(tuán)，由柴德·克羅格、麥克·克羅格、萊恩·皮克與前鼓手布蘭登·克羅格組成。五分錢合唱團(tuán)是商業(yè)上最成功的加拿大團(tuán)體之一，在全球擁有三千萬(wàn)唱片銷售量。五分錢合唱團(tuán)在21世紀(jì)最暢銷音樂中排名第十一名，也在美國(guó)的21世紀(jì)最暢銷外國(guó)音樂排名第二名，僅次披頭士。