Chad Kroeger proposed to Lavigne with scrapbook photo

Romantic NICKELBACK frontman CHAD KROEGER took over AVRIL LAVIGNE's studio scrapbook to propose marriage.

Lavigne had been chronicling their time together in words and photos and she was puzzled when she found the rocker adding what appeared to be his own memories.

She tells Los Angeles DJ Ryan Seacrest, "The only thing that was weird was we usually go to the studio together and he had gone before me. And I have been making this scrapbook of my time in the studio with a Polaroid camera and the only thing that was weird was I walked into the studio and he was putting a picture in to the book and I was like 'What is he doing?'

"All of a sudden, I walk over and he had taken a photo of himself holding the ring box and put the Polaroid in my scrapbook and because I had stickers everywhere he put in, 'Will you marry me?' It was really romantic."

Kroeger admits it was clear they had feelings for each other as soon as they started working together in the studio, adding, "I think it evolved into this wonderful thing. When you're sitting there, singing across from somebody into the microphone and singing love songs and you start developing these feelings for that person, and it just blossomed into this thing and last summer we started dating and I didn't take long, I got down on one knee."

The couple is now making plans for the wedding. Lavigne explains, "A lot of close friends and family (are coming); it's sort of smaller but it's going to be quite spectacular. There's a theme to it, we're going pretty big; but Chad doesn't even know everything yet!"