Girl group Nine Muses took a picture with ZE:A's Im Si-wan.
On November 24, Nine Muses posted a picture on its official Facebook and wrote, "Si-wan came to celebrate our comeback."
The girls also released their mini album "LOST" and the music video for "Can't Sleep, Am Hungry".
Meanwhile, Nine Muses released their new mini album "LOST" through music sites on November 24 at midnight.