Marichkov was born in Sofia and played piano, clarinet, bass-guitar and guitar since young age. In 1963 he founded the first rock band, the "Bandaracite" (Бъндараците) and in 1967 one of the most successful bands in Bulgaria during the 70s and 80s (with still many fans) - "Shturtzite" ("The Crickets", Щурците). Since foundation, Kiril Marichkov is the frontman (solo vocal, bass guitar and keyboards) of the band. He has also composed a large part of their songs, which approximate 160, in fourteen albums. Shturcite have performed over 2600 concerts in sixteen countries.

In his discography Kiril Marichkov has two solo albums - "Zodija Shturec" ("Starsign Cricket", Зодия Щурец, 1997) and "Iskam da kazha" ("I want to say", Искам да кажа) which gave birth to several hits including "Vjarvam v teb ("I believe in you", Вярвам в теб), "Kletva" ("Vow", Клетва),

"Obicham te zavinagi" ("I love you forever", Обичам те завинаги) and "Mojat svjat" ("My world", Моят свят).

He is a co-founder of the only Bulgarian Rock-radiostation "Radio Tangra" (Радио Тангра), today "Radio Gong" (Радио Гонг).

In 1990, at a time of great political changes at the fall of the Communist regime in Bulgaria, his song "Az sym prosto Chovek" ("I'm only Human", Аз съм просто Човек) became one of the new democracy's anthems, sung by hundreds of thousands of people on the new democratic political rallies. During this period Kiril Marichkov was elected member of the Grand National Assembly as a part of the Union of Democratic Forces.

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1944