IU, who previously announced her comeback album to be sometime in July, may delay her return due to her busy drama schedule.

On June 18, LOEN Entertainment told, "We are currently working on IU's album with hopes to release her album in July but it is not definitive at this point."

He added, "Much of the album preparation is finished but IU's schedule is simply too busy due to her drama filming. There is certainly a possibility that she may come back after July if we can't get enough work in before then."

Currently, IU is starring in drama 'Lee Soon Shin' which is scheduled to end around August.

IU's new album is said to include many changes in style in comparison to her previous cutesy, girly songs.

As many artists are gearing up to make their comebacks-such as Dynamic Duo, 2NE1, INFINITE, JYJ Junsu, Ailee and John Park-July is certainly set to be another all-star battle.