The xx's new album, Coexist, comes out Sept. 11. Alexandra Waespi/Courtesy of the artist hide caption

itoggle caption Alexandra Waespi/Courtesy of the artist

The xx performs at the 2010 Bonnaroo Music Festival. Shantel Mitchell hide caption

itoggle caption Shantel Mitchell
courtesy of the artist

Oliver Sim (far left) and Romy Madley Croft (left of center) of The xx shift roles without ever seeming hostile, cold or even unsupportive. Owen Richards hide caption

itoggle caption Owen Richards
Owen Richards