Kronos Quartet are a popular contemporary string quartet.   They had many works composed specifically for  them by some of the top contemporary composers around the world.   They also have adventurously taken on string quartet version of jazz, rock  and pop music. 

An ongoing crowd favorite in live performance is their cover of Icelandic "post rock" wunderkind, Sigur Rós' Flugufrelsarinn.    Like all the best covers they have re-imagined this work dragging it into the realm of classical performance.   

The song first appeared on Sigur Rós' 1999 breakthrough album Ágætis byrjun.  It's hard to believe more than 25 years have passed since then.    The groups name, Sigur Rós came about because one of the band members had a sister named Rose.    "Flugufrelsarinn"	translated is Savior of the Fly and the album title ætis byrjun is translated as A Good Beginning.  

Enjoy both the Kronos and Sigur Rós versions below.