Adele may be trying to keep her wedding plans on the down low, but Avril Lavigne certainly is not.

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Nor is she planning a low key celebration, either. The 28-year-old Canadian singer, who is engaged to marry Nickleback singer Chad Kroeger later this year, has revealed that their wedding is going to be rather "spectacular."

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Actually spectacular. Avril was a guest at Ryan Seacrest's KIIS-FM radio programme earlier this week when she revealed the details.

"We're going pretty big, but Chad doesn't even know everything," said the singer. "And there's a theme to it."

Although she didn't exactly say what that theme was, she did reveal her cake-thoughts: "I'm going to take the lyrics from the sheet music from one of our songs and wrap it around the wedding cake."

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Avril also opened up about how Chad proposed to her with a 14-carat diamond ring last August, after just one month of dating: "I had been making this scrapbook of my time in the studio. I walk over and he had taken a photo of himself holding the ring box and put the Polaroid in my scrapbook. Because I had stickers everywhere he put in 'Will you marry me?' It was really romantic and kind of made sense."

Very sweet indeed! But we can't help wonder what that 'theme' of her wedding might be...

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