Ethereal Icelandic group Sigur Rós returned this year with Valtari, their sixth full-length album and first in four years. They’re supporting it with two sold-out shows at the Skyline Stage of The Mann Center for the Performing Arts this weekend, and for today’s contest, we’re not only giving away a pair of tickets to the Sunday night show, but a autographed vinyl LP of Valtari. All we’re asking you to do is weigh in on some (somewhat easy) band trivia: Sigur Rós named itself after singer Jónsi Birgisson’s sister. But what is the literal translation of the band’s name? Leave your answer in the comments, and we’ll choose a winner at random this afternoon!