"Good 4 U" is a song by American singer-songwriter Olivia Rodrigo. It was released on May 14, 2021, through Geffen and Interscope Records, as the third single from Rodrigo's debut studio album, Sour (2021). The song was written by Rodrigo and its producer Dan Nigro who co-produced it with Alexander 23; Hayley Williams and Josh Farro were given co-writing credits due to influence from Paramore's "Misery Business" (2007).

Olivia Isabel Rodrigo is an American singer-songwriter and actress. She first rose to prominence for starring on the Disney Channel series Bizaardvark (2016–2019) and the Disney+ series High School Musical: The Musical: The Series (2019–2022).