Red Velvet gave fans a surprise in the form of a special clip, titled 'The Red Summer Vacation'!

To thank their fans, or ReVeluv, for the success of their summer album 'The Red Summer', Red Velvet brought out their aegyo and their fan service, with "You Better Know" heightening the mood in the background.

Red Velvet will also be greeting domestic fans with their first solo concert 'Red Room' from August 18-20.