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Os Mutantesspotlight show • On Beck's superb 1998 album "Mutations," the track "Tropicalia" stood out, and for good reason: it was inspired by the Brazilian psychedelic rockers associated with the Tropicália movement of the late 1960s.

The movement blended traditional Brazilian culture with foreign influences — notably rock music of America and Britain.

Os Mutantes dissolved in 1978, but regrouped in 2006 after influential tastemakers such as Kurt Cobain and David Byrne mentioned how much Os Mutantes had inspired them.

Founding member Sergio Dias, 61, said in a phone interview that the 2006 reunion was supposed to be a one-off show, but once he saw young people in the audience, he changed his mind.

"There was no way we could stop after that," he said. "We had no idea at all [that they had young fans]."

The ensemble has recorded two albums since its reunion — 2009's "Haih Or Amortecedor" and 2013's "Full Metal Jack" — with the latter featuring nearly all of its lyrics in English. "We want to communicate what we feel." Dias said.

The band's aim is the same as it was when it was a integral part of the counterculture in the 1960s. "We don't think commercially, we think of art," Dias said. "[Don't] look back, ever."

Capsula opens.

When • Friday, May 10, at 9 p.m.Where • Urban Lounge, 241 S. 500 East, Salt Lake CityTickets • $20 at 24Tix