Young Korean heartthrob and EXO member Chanyeol will make a guest appearance in the final episode of "Unpretty Rapstar" season 2 along with Girls' Generation singer Tiffany.

The Kpop stars were planning to surprise fans with their performance during the telecast of the program. But an admirer, who attended the filming of the finale episode, posted a few details about their special appearance on Twitter.

The uploader revealed that Chanyeol teamed up with a female contestant named Heize for a live performance and the EXO member was wearing a grey coat with his hair styled up.

The post, which was uploaded on Monday, 26 October, immediately captured the attention of many of the Kpop fans. It was retweeted by 513 social media users and favourited by 165 people.

Later on, a representative from Mnet confirmed the news and revealed that the Kpop stars will make special appearance on stage. "It's true that Chanyeol and Tiffany stood on the final stage. You'll have to find out the details when the show airs," AllKpop quoted the representative as saying.

"Unpretty Rapstar" is a spinoff of Korean music show "Show Me the Money" and focuses on female rappers. The contestants to appear in the finale episode of season 2 includes "Wonder Girls" singer Yubin, "Sistar" member Hyolyn, "Fiestar" singer Yezi, "Play the Siren" member Kasper, 4minute singer Jiyoon, Starship Trainee EXY, YG Trainee Sua, KittiB, Heize and Truedy.

Mnet will air the finale of "Unpretty Rapstar" season 2 on Tuesday, 13 November.