“Hey hey, you you!” Canadian singer-songwriter Avril Lavigne is making her Rock Band debut in the Rivals Expansion . Avril Lavigne Pack 1 brings 3 of her biggest hits, Complicated, My Happy Ending, and What the Hell. According to the blog post from Harmonix, each song makes the greatest use of Rock Band techniques for both beginners and experts. The pack starts with Complicated, which was the second most successful single and was nominated for two Grammy’s in 2002. Harmonix emphasizes the bass in this song, with enjoyable harmonies. My Happy Ending was the number nine single in the United States in 2004 for four weeks. The song provides plenty of opportunity for Hammer On’s and Pull Off’s, and is the second song in the pack that emphasizes the bass. Last but not least, What the Hell, is the second-highest selling single of her career. According to Harmonix “the handclaps have been replaced by the drums.” Vocally challenging, the song provides plenty of opportunities for soloists and harmonies to shine. The first pack will be available for $5.49 as a bundle, and $1.99 for each song. Rock Band 4: Rivals is currently available for PS4 and Xbox One.