There are multiple artists named “Sonny":
1) Sonny was the name Sonny Moore released solo material under. He is an American vocalist and multi-instrumentalist, popularly known as Skrillex, and for being lead vocalist for the post-hardcore band From First to Last.
After announcing he had left From First to Last to pursue a solo career, Sonny launched a Myspace page, releasing three songs: "Signal", "Equinox", and "Glow Worm".
On April 7, 2009, he released Gypsyhook, a digital EP, which featured three songs and four remixes. Read more on Last.fm