From the Polish TV show, "Twoja twarz brzmi znajomo" dancer Stefano Terrazzino as Tina Turner:
This is singer/actor Grzegorz Wilk as Amanda Lear:
Oh, and I believe Wilk is in the middle of this.
But vocalist Matthew (Matti) Jakubiec is another category of excellence altogether:
As Grażyna Brodzińsk singing from "My Fair Lady."
Compare to the original by Ewa Farna.
Original: Agnieszka Chylińska.
See Matti also as Lene Nystrøm Rasted and Sinéad O'Connor.
I wish the American and British versions of this show had femulators of this quality.