Ukraine - Solovey - Go_A

Solovey new version release image March 4

Ukraine was to be represented in Rotterdam by the band Go_A. With the song Solovey they won the Vidbir contest on Febryary 22.
Go_A will be back for the next Eurovision Song Contest. Here's their 2021 page.

Соловей release image February 4

Solovey (Nightingale, Соловей) is written by band members Taras Shevchenko and Kateryna Pavlenko and is sung in Ukrainian.

The song was released through several digital stores on February 4.
A new version was released on March 4, along with the instrumental version. (*It is actually karaoke as it has backing vocals)
You'll find the old version if you search for Соловей, (as Go-A) the new bird listens to Solovey (Go_A).
It appears the original version is now removed from the digital sources

Go_A (Гоу_Ей) are Taras Shevchenko, Kateryna Pavlenko, Igor Didenchuk and Ivan Grigoryak.

Live performance video

Versions
Solovey - new version (March 4)
- Official 2CD
Соловей (Solovey) - original version (February 4)
Solovey - Instrumental * (March 4) = karaoke of new version
- All digital releases, karaoke also on the official karaoke album (digital)

Picture from Go_A's Facebook

Links and sources
Go_A FB, 2021
Thanks to Fuego, see comments