I’ve always had a relative soft spot for Avril Lavigne, not because her career is built from consistently solid albums (in fact, Lavigne’s discography is infamously spotty, marked by great pop singles and not much else), but because I always felt like she was unique in the landscape of pop music. It’s not just that she worked with Butch Walker on pretty much all of her best songs—though that certainly didn’t hurt—but rather that her sassy punk image and her loud, distinct personality always showed through in her songs. Lavigne was at her best on her second full-length—2004’s Under My Skin—where a dark pop style (on the Walker-penned “My Happy Ending”) and a rebellious tone (the other big single, “Don’t Tell Me,” which radiated a genuine girl power message that not many pop stars have been able to replicate since)—set her apart from the other pop music on the radio at the time. Other than Pink (who, big surprise, also utilized Walker as her go-to co-writer and producer), no other female pop starlet of the early 2000s gave off the same in-control confidence. Here was a pop singer/songwriter who was going to make the music that she wanted to and do it her own way, damn anyone—especially the label—who tried to tell her otherwise.