Raina Kabaivanska has been played on NTS shows including The Last Playlist w/ Luis Felipe Farfán, with Don Carlos - Morte Di Rodrigo, Atto IV, Sc.2 first played on 10 February 2021.

Raina Kabaivanska (Bulgarian: Райна Кабаиванска) (born December 15, 1934) is a Bulgarian opera singer, one of the most renowned sopranos in the second half of the 20th century. Born in Burgas under the name Raina Yakimova, she graduated Opera Singing and Piano from the Bulgarian State Academy of Music. Kabaivanska has received the following international opera awards: Bellini (1965), Viotti d'Oro (1970), Puccini (1978), Illica (1979), Monteverdi (1980), the Award of Accademia 'Medici' - Lorenzo il Magnifico, Florence (1990), the Grand Prix 'A Life, Dedicated to the Music', Venice (2000).

At present, Kabaivanska is a professor at the Accademia Musicale Chigiana, in Siena, Italy. She has a Master Class for performers of Puccini's works, as well as master classes in Spain, Italy and France. She is also a jury member for many prestigious competitions all over the world.