Costumed Singer is a common Hunter/Mage minion card that belongs to the "Audiopocalypse" addition of the "Festival of Legends" set. It was released on 30.05.2023 and is one of initially 38 cards. The artist of this card was Matt Dixon, who also made 258 other artworks for Hearthstone.
The flavor text of the card is the following: Who knows which forgotten, washed-up, former C-list celebrity might be in there!
The card is on average to memorize with 90% of correct quiz questions.