In 1990 Sergey acquainted with the composer Valery Bashenev, wrote the music for most of the performance of the songs.

In February 1991 Chumakov became the winner of the TV contest Morning Star.

Influence on his work produced notable performers such as Elvis Presley, Paul Anka, Louis Prima, the band Creedence Clearwater Revival.

During this period, losing popularity singer even made peace with Alexander Shaganov.

According Shaganov fading career Sergey contributed to conflict with Alla Pugacheva and the singer addicted to alcohol.