Raina will be working with rapper Kanto from hip hop group TROY for her upcoming solo debut single.

Following the success of 'A Midnight Summer's Sweetness' with San E, Raina will join hands with Kanto and release her solo debut single 'I Know It's A Joke' on October 8th.

'I Know It's A Joke' is described to be like a conversation between a man who suddenly says parting words and a woman who is in denial because of the sudden break up.

Pledis Entertainment said,"Since this is Raina's first solo album, we tried our best to capture her true voice that has been hidden all this time. Kanto's baritone rap along with Raina's vocal help bring out the lonely feeling of the song. Please look forward to the two's chemistry together".