SOUR is the musical project of Olivia Rodrigo, a singer-songwriter who rose to fame with her debut single "Drivers License" in 2021. Her music is characterized by its raw and confessional lyrics, which often explore themes of heartbreak, love, and self-discovery. SOUR's debut album, "SOUR," was released in 2021 and was a critical and commercial success, earning Rodrigo several Grammy nominations. Since then, she has released a number of hit singles, including "Good 4 U," "Deja Vu," and "Traitor." SOUR's music is known for its catchy melodies, relatable lyrics, and Rodrigo's powerful vocals.