Red Velvet win their fifth trophy during the Sept. 24 episode of Mnet's M! Countdown.

This week, due to Chuseok or Korean Thanksgiving, the music show decided to broadcast a travel playlist for the people going home during the holiday.

While there were no live performances, a winner was announced during the show. Surprising the members of Red Velvet while reading the script, the ladies did not expect to win their fifth trophy. Red Velvet competed for the first place trophy against CNBLUE and their single titled "Cinderella."

Red Velvet won for their hit single titled "Dumb Dumb." Congratulations to Red Velvet.

"Dumb Dumb" tells about a girl who is frustrated with her awkwardness in front of her crush. The song was written by U.K.- based composing team, London Noise. The music video was released on Sept. 8.