Radiohead guitarist Jonny Greenwood will perform double duty on the band's upcoming tour, opening with his side project Junun. They are also set to play some independent shows.

"The Indians are coming ...," Greenwood confirmed via Twitter, along with a list of Junun's upcoming concerts. "I'm playing on most of these dates (if I can remember the wonky bass lines)," he added.

Radiohead hits the road again on June 6, celebrating the 20th anniversary of their groundbreaking album OK Computer with an expanded reissue. OK Computer: OKNOTOK is due on June 23, the same day Radiohead will headline the Glastonbury Festival. Junun is the support act with Radiohead in Oslo, Stockholm, Florence, Dublin, Manchester and Tel Aviv. James Blake and Oliver Coates will open on other dates.

"I'm always a little wary of rock bands halfheartedly dabbling in world music — itself a slightly greasy term — but there are exceptions," Greenwood admitted in a 2014 talk with the Evening Standard. Junun, which means "passion," is anything but halfhearted. Greenwood was joined on their self-titled 2015 debut by Israeli composer Shye Ben Tzur and the Rajasthan Express, an Indian ensemble; their lyrics are in Hebrew, Hindi and Urdu.

The recording of Junun at a 15th-century Mehrangarh Fort in Jodhpur, India, is the also the subject of a documentary of the same name by Greenwood's pal Paul Thomas Anderson, for whom he has composed several film soundtracks – including 2007's There Will Be Blood.

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