A little more expanding: Was Rock music ever remotely popular during the 50s/60s in the USSR or any Soviet satellite states? Was there some kind of underground movement, and how did the Soviet government approach it?
hi! additional info is welcome; meanwhile, get started on this earlier post, which includes links to a few more
What music did people listen to in the USSR and the other communist nations during the Cold War?
There was a very popular Estonian rock band from the 70's and 80's called Ruja (you can find a few of their songs on Youtube). They perform in Estonian, which was discouraged by the Soviet authorities. They couldn't release a record until 1980. They helped the creation of the Singing Revolution as singing festivals has long been an Estonian culture but they were banned under Soviet rule (there's a titular documentary about that event and here's a Smisonian article on how the event contributes to the ultimate independence of Estonia.) Unfortunately their front man Urmas Alender died when the ferry MS Estonia sank in 1994.
Alexei Yurchak, an anthropologist/historian whose research focuses on the late Soviet Union, notes that many younger people in the USSR liked to listen to bands like King Crimson, Pink Floyd, Deep Purple, among others. Moreover, many did not see it as a contradiction to enjoy American and British rock bands and also be a good socialist.
Source: Alexei Yurchak, "Soviet Hegemony of Form: Everything Was Forever, Until It Was No More," esp. p. 502. See also his book, Everything Was Forever, Until It Was No More