Earlier, Tony An has announced to make his comeback with a new album. However, it has been revealed that he would be returning in a multi-member group, arousing more curiosity from the fans.

According to Star News on January 31st, "It is true that Tony An is taking part in a group activity for the first time in 8 years. But at the moment there are many things still in the works, so we are unable to tell you any of the details."

When asked if it had anything to do with H.O.T's reunion, the source answered "No."

On the same day, TOny An wrote via his Twitter, "Surprise! I’m going to take part in group activities after 8 years! How long has it been? We are working and practicing together everyday. We also started recording. Please look forward to a new us. D-31."

Tony An debuted with the legendary group H.O.T in 1996. After the group disbanded in 2001, he joined fellow members Jang Woo Hyuk and Lee Jae Won for the group JTL. After that, he has been promoting as a solo singer ever since.