Avril Lavigne is a girl who knows what she wants.And when it came to writing her eagerly awaited third album,The Best Damn Thing,she had one very clear goal in mind:To make it fun.While touring in 2004 for her last album,Under My Skin,which sold more than 8 million copies worldwide,the Canadian-born punk-pop dynamo found that her favorite songs to play were the faster,more up-tempo songs so she resolved to make a record that captured the kind of high-spirited,full-throttle energy that she loved to unleash on-stage.