Aliaksei was born in Minsk on the 18th April 1996. He lives in Minsk. He began to sing at the age of 5 and at 6, he entered a musical school in Minsk where he has been practicing piano. Some famous Belarusian singers were his singing instructors. At 10 Alexei began to take part in some performances of National Musical Theatre. Also Aliaksei participates in children vocal group Veryasyata.
Since he was 9, Alexei has written songs. He is a prize-winner of several international musical contests in Belarus, Italy and Bulgaria. Aliaksei considers the Junior Eurovision Song Contest one of the most popular contests where one can prove himself and make his country proud! He participated in the Junior Eurovision Song Contest 2007 and won with one point more than the Armenian runner up. He sang the song S druz'yami ("With Friends"). It was a song with a fast tempo and energetic dancing. He wrote this song himself. He was the second winner of this contest from Belarus, after Ksenia Sitnik (2005).