The `What the Hell` singer has gained lots of confidence from the initial success of her Abbey Dawn clothing line - which was available exclusively at US retailer Kohl`s and is now being sold online - and she now sees it as "another way to be creative" outside of her music.
Avril said: "The inspiration for my line comes from my personal style. I`m designing the things I want. I`m not a huge fan of floral. I like stripes and plaid and polka dots and all-over prints of skulls.
"I`m designing it for me, really. I learned a lot about myself with designing. The stuff I was really excited about for Kohl`s did well.
"It gave me the confidence. You don`t have to be perfect. It`s about having fun. It`s a lot of fun. It`s another way to be creative. It`s all the same. It comes from me."
Avril - who got the name of her brand from a nickname her father gave her as a young girl - is also launching a menswear line, including T-shirts, hoodies and caps in gray, black, white and red, which she says is inspired by her brother, Matt.
She added to WWD: "I think about my brother and I think about my band. It`s for the guy who`s into brands like Metal Mulisha - just edgier."
Abbey Dawn`s website launches this Friday (17.12.10), with the brand to supply to shops including Trash and Vaudeville in New York and Blue Banana in the U.K, and the brand will work up toward a spring 2012 debut of a full juniors fashion line.