This Is Why is the sixth studio album by the American rock band Paramore, released on February 10, 2023 through Atlantic Records, their final studio album for the label. It is their first album since 2017, following After Laughter, and is the band's second album to have that lineup (Hayley Williams, Taylor York, and Zac Farro). The album was supported by four singles: "This Is Why", "The News", "C'est Comme Ça", and "Running Out of Time".

This Is Why received critical acclaim and debuted at number two on the Billboard 200 with 64,000 album-equivalent units in its first week, 47,000 of which were pure album sales. A remix album, Re: This Is Why, was released October 6, 2023, featuring remixed, reworked, and rewritten versions of songs from This Is Why by different artists. The album won Best Rock Album and the album's title track won Best Alternative Music Performance at the 66th Annual Grammy Awards.