This Is Why is the sixth studio album by American rock band Paramore, released on February 10, 2023, through Atlantic Records. It is the band's first album in nearly six years, following After Laughter (2017), as well as their first album to feature the same line-up as its predecessor. Three singles preceded the album: "This Is Why", "The News", and "C'est Comme Ça". The fourth single "Running Out of Time" was released after the album's release. This Is Why received universal acclaim from critics.

In May 2017, Paramore released their fifth studio album After Laughter to critical acclaim. The album saw the return of former drummer Zac Farro, who had left the band in 2010. The band toured in support of the album from June 2017 until September 2018. Following the conclusion of the After Laughter Tour, the members of Paramore took a break from writing and recording music for the band and worked on other endeavors. Hayley Williams featured on the American Football song "Uncomfortably Numb" in 2019 and released two solo albums, Petals for Armor (2020) and Flowers for Vases / Descansos (2021); the former was produced by Paramore guitarist Taylor York. She also pivoted her attention more towards her hair dye company Good Dye Young and hosted the weekly BBC Sounds series Everything Is Emo. Farro continued his ongoing project HalfNoise, releasing an extended play – Flowerss (2018) – and two albums – Natural Disguise (2019) and Motif (2021). Farro also recorded drums for the songs "Watch Me While I Bloom" and "Crystal Clear" from Williams' Petals for Armor and released an EP under his own name titled Zafari (2020).

Discussions about a sixth Paramore album began in 2020 while Williams was promoting Petals for Armor. Williams hinted that the band's next album would be more guitar-driven, stating, "We've found ourselves listening to a lot of older music that we grew up being inspired by." She further commented on the sound of the album in 2022, likening it to Bloc Party: “From day one, Bloc Party was the number one reference because there was such an urgency to their sound that was different to the fast punk or the pop-punk or the like, loud wall of sound emo bands that were happening in the early 2000s.” In January 2022, the band confirmed they had entered the studio to work on their sixth album.

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