Producer JYP announced the news of Wonder Girls' US come back.

JYP mentions Wonder Girls' come back on his Twitter, "WG 12 song US album are completed. Worldwide composers participated in the ‘biggest scale ever’ music video is done. There’s a huge surprise on their 1st single so get ready for this summer! We are now adjusting the timing of release for the album and method with our partners in US. Please wait for us just little bit more."

He continued, "Wonder Girls' started working on producing another Korean album as well. Let's make this summer Wonder Girls festival both in US and Korea."

He added "By the way Japanese Wonder Girls fans will have a pleasant surprise in mid April "

Wonder Girls released new single 'The DJ Is Mine' as they traveled back and forth between US and Korea the song was also for their TV movie ‘The Wonder Girls’ featuring School Gyrls last February.