There are many artists known as Petti: 1. Petti is an acclaimed Basque singer-songwriter usually described as existentialist. He released (up to 2010) 6 solo albums and a split with Anari as Anari ta Petti. His music has been compared to artists like Billy Bragg, Tim Buckley, Nick Drake, Nick Cave, or Tom Waits. 2. A Finnish rap artist.