OTK are a four-piece Czech alternative rock band. They formed in 1988 in Prague. The band went through a couple of line-up changes during its existence, but most recently, the four bandmembers have been Jarda Mugrauer (drums), Honza Žalud (bass), Honza Klempíř (keyboard) and Ondra Ježek (guitar, vocals, lyrics). Several other musicians contributed on studio recordings. OTK are quite notorious for the long wait (about 5 years) that separates their albums - in their 20 years together, they've only released four full-length albums, the last one being 2008's Okolo.