There is more than one artist with the name Rectangle.
1) Rock band from Vevey, Switzerland.
The Machine : Bass
Sodom Luca : Vocals + Guitar
Polux Castor : Vocals + Guitar
Jack Facial : Drums
2) Rectangle was also an indie rock band from Champaign, Illinois, USA active from roughly 1998 to 2003. Influenced by bands such as Polvo and Pavement, Rectangle created a skewed, guitar-twisting form of indie pop/rock music that was at once intricate, jagged, noisy, and sweetly melodic. They released one EP, Prowl Across The Arctic (1998) and two albums, Bunker (2000) and Uno Nunca Sabe (2003) before breaking up. They were signed to Stereorrific Recordings (http://www.stereorrific.com/).