Girl group Red Velvet will release a fan song "Sweet Dreams" on its debut day, Aug. 1.

SM Entertainment said, "As it is a fan song that will be released on the day of the 10th anniversary of our debut, we will approach Red Velvet and fans who have been together for a long time since our debut."

In addition, a new version of the "Cosmic" album will be released on the 1st of next month.

A total of seven songs will be included, including "Sweet Dreams" and six songs released on June 24.