Brown Eyed Girls fans get ready - the group will be making their official comeback this Sunday on SBS's Inkigayo according to their agency Nega Network.

The stage performance will be the first time anyone will hear the new single, the title of which has yet to be revealed. The Inkigayo comeback will air the day before the group's release of their fifth studio album Black Box.

On July 23 the agency updated the Brown Eyed Girls' official Facebook page with a teaser photo for the new single. The image shows the ladies hanging out on the floor surrounded by pillows, blankets, snacks and toys, as if they were having a slumber party.

The teaser suggests that fans can expect a more relaxed and casual release from the girls than what we have previously seen and heard.

Previously, the Brown Eyed Girls pre-released the song "Recipe" from the upcoming album and the song quickly rose to the top of several music charts in Korea.

Black Box marks the group's first studio album release in two years and will be officially released on July 29.