What rhyming title did Avril Lavigne choose for fourth studio album, released in 2011?

Avril Lavigne called her fourth studio album Goodbye Lullaby.

Goodbye Lullaby was released in 2011 and followed Lavigne’s third album, The Best Damn Thing. The title uses the rhyming, or near-rhyming, pairing of “goodbye” and “lullaby,” giving the album a memorable phrase that combines farewell with the soothing imagery of a lullaby.

The album represented a more reflective side of Lavigne’s music than some of her earlier pop-rock work. Its songs included “What the Hell,” “Smile,” and “Wish You Were Here,” while the title track and other material leaned toward acoustic instruments and more personal themes. Lavigne co-wrote much of the album with collaborators including Max Martin, Shellback, and Evan Taubenfeld.

Goodbye Lullaby was released worldwide on March 2, 2011, through RCA Records. It is sometimes confused with Lavigne’s self-titled fifth studio album, which arrived in 2013 and included “Here’s to Never Growing Up” and “Hello Kitty.”