Born in Rome in 2013, OU has previously recorded two albums of original compositions by Ersilia Prosperi, respectively in 2014 and 2015: "Pisces Crisis" and "Scrambled!", both recorded in Seattle by Floyd Reitsma in Stone Grossard’s Studio Litho (Pearl Jam), produced by Amy Denio, mastered by Chris Hanzsek (Nirvana) and released by US labels Spoot Music and Public Eyesore. OU with Amy Denio, Martina Fadda, Sabrina Coda, Claudio Mosconi, Cristiano De Fabritiis, Luca Venitucci, Andrea Pesce and Cristina Pecorario attended the stages and radios of the American west coast, in two long tours that led him to participate in festivals of international prominence such as the Earshot Festival (Seattle, WA), the Joshua Tree Music Festival (Los Angeles, CA), the UC Botanical Garden Berkeley Summer Concerts (Berkeley, CA), Trinidad, Petaluma, Portland, the Bluewhale jazz festival in Los Angeles with guest Emily Hay. Ou also presented Pisces Crisis and Scrambled! in the European tour featuring Amy Denio at the Folk’n’Fusion Festival in Germany, opening the Calibro35’s Space Tour and at Trento Jazz Festival, Urbino Jazz Festival, Fano Jazz Festival, Villa Ada Incontra Il Mondo. OU has just released its third album "Uranio" (Folderol / Spoot Music) in league with the multi-instrumentalist, singer and composer Valeria Sturba (Opopoiooooo).