On January 9th, ACube Entertainment announced that Apink will release a new single to commemorate their 1000th day since debut.

Along with the notice is a compilation photos of the girls after they woke up from their sleeps. They were having no make-up on but still managed to look flawless, proving their natural beauties.

The song is called "Good Morning Baby" and is composed by Double Sidekick. It is said to be a dance track which will showcase a new mature side of the girls.

"Good Morning Baby" will be released through various music sites on January 13th.