When the Icelandic art-rock trio Sigur Ros plays Bayfront Park Amphitheater on Oct. 9, two things will be certain: Thousands of people will sing along to the band's lovely, spacy songs, and no two people will sing the same thing at once.
Led by the singer-guitarist Jon Por Birgisson, better known as Jonsi, Sigur Ros performs its songs in a mix of Icelandic and Hopelandic, an indecipherable language invented by the band. Unless a listener is fluent in Sigur Ros' native tongue, or has tricked himself into believing he understands its artificial one, any attempt to find meaning among the lyrics will go nowhere. The music, meanwhile, can be deeply felt, even by people who've never ventured north of the subtropics. Contradictions abound here, with songs that radiate warmth despite being awash in electronic effects, and melodies that keep their distance while still sounding intimate.
Still not convinced? Head to Amazon.com, which is streaming Sigur Ros' beautiful seventh album, "Kveikur," through its June 18 release.
Tickets to the Oct. 9 concert, the last U.S. date on Sigur Ros' 18-month world tour, will go on sale at 10 a.m. Friday. With service fees, tickets cost $34 and $62.50 at LiveNation.com.