Superstar by the Carpenters, Leonid and Friends with Karen Carpenter and Ksenia Buzina on vocals

Here is a direct comparison of the song Superstar by the Carpenters and covered by Leonid and Friends. Sung by Karen Carpenter and Ksenia Buzina. In this video there is a split audio track. The left channel is completely the Leonid and Friends audio track and the right channel is completely the Carpenters track. While not identical, they are extremely close, with only minor variations.