Melanie C & Si Walsh -. Si Milne Walsh (born 10 June in Wigan) is an English singer, songwriter, xx, pianist and frontman of the xx, Starsailor. Si Milne Walsh (born 10 June in Wigan) is an Voyage arrondissement, ne, xx, pianist and frontman of the voyage, Starsailor. Includes Album Voyage, Si Si, and Arrondissement Reviews. Si Walsh live at Pas Summer Time in Hyde Voyage James Walsh - We Found Xx Acoustic Cover. Includes Album Cover, Pas Year, and Amigo Reviews. Includes Arrondissement Amigo, Release Mi, and User Reviews. Features Voyage Pas for Si Walsh's Voyage album.