Singing Revolution: The Soviet economic blockade of Lithuania (pictured) was lifted when the Lithuanian parliament agreed to suspend the effects of their act to re-establish Lithuania as a state.

The Singing Revolution was a series of events from 1987 to 1991 that led to the restoration of independence of the three Soviet-occupied Baltic countries of Estonia, Latvia, and Lithuania at the end of the Cold War. The term was coined by an Estonian activist and artist, Heinz Valk, in an article published a week after the 10–11 June 1988 spontaneous mass evening singing demonstrations at the Tallinn Song Festival Grounds.

The Soviet Union imposed an economic blockade on Lithuania between 18 April and 2 July 1990. By the late 1980s, Mikhail Gorbachev, leader of the Soviet Union, embarked on a course of liberalisation of the political system of the country, and as a result, movements appeared that advocated for autonomy or independence within the Soviet Union. The Lithuanian Supreme Council then adopted the Act of the Re-Establishment of the State of Lithuania (Act) on 11 March 1990. Kremlin officials demanded that the Act be annulled, interpreting it as a secessionist affair, but Lithuania ignored them, arguing that they were coerced to join the USSR back in 1940. Gorbachev sent an ultimatum on 13 April, requiring Lithuanians to back down under the threat of economic sanctions. As the Soviet officials were not satisfied with the answer from Lithuania, the blockade started on 18 April at 21:25 (EEST).

The Act of the Re-Establishment of the State of Lithuania or Act of 11 March was an independence declaration by Lithuania adopted on 11 March 1990, signed by all members of the Supreme Council of the Republic of Lithuania led by Sąjūdis. The act emphasized restoration and legal continuity of the interwar-period Lithuania, which was occupied by the Soviet Union and annexed in June 1940. In March 1990, it was the first of the 15 Soviet republics to declare independence, with the rest following to continue for 21 months, concluding with Kazakhstan's independence in 1991. These events led to the dissolution of the Soviet Union in December 1991.