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Gusti Irwan Wibowo (28 November 1999 – 15 June 2025), also known as Gustiwiw, was an Indonesian musician, music producer, songwriter, comedian, content creator and entertainer. He was also known for producing music for other prominent Indonesian artists, such as Raisa, Ardhito Pramono, Sal Priadi, Danilla Riyadi, Nadin Amizah, and others. Gusti was known for promoting his own music genre, namely "Endikup" (which literally translates to "pleasing to the ears"), by combining dangdut, pop music, orchestra, and traditional Malay music, with unserious and comedic lyrics. He released an album titled Duh Gusti in 2023. He died in 2025 while preparing for his second album, which was released posthumously a month later.