"Toxic Till the End" is a song by New Zealand and South Korean singer Rosé. It was released on 6 December 2024 through The Black Label and Atlantic Records as the third single from her debut studio album Rosie (2024). It was written by Rosé, Michael Pollack, Emily Warren, and Evan Blair, who also produced the track. It has been described as an emo pop, power pop, and synth-pop single blending guitars and synths with emotionally raw lyrics. Inspired by Rosé's past experiences, the song revolves around a toxic on-again, off-again relationship. Critics positively reviewed "Toxic Till the End" for its emotional depth and energetic production. The accompanying music video was directed by Ramez Silyan and features Rosé and actor Evan Mock in a toxic love story filmed at Old Westbury Gardens, New York. The song achieved success, peaking at number four on South Korea's Circle Digital Chart and number 15 on the Billboard Global 200, as well as in the top ten in Hong Kong, Singapore, Taiwan, and Malaysia. It also charted in Australia, Canada, Japan, the United Kingdom, and the United States, among other countries. Rosé made her debut live performance of "Toxic Till the End" on The Tonight Show Starring Jimmy Fallon.