It has already been 10 years since B1A4 made its debut.

To celebrate this anniversary, the boy group prepared a special single for all their fans who have continued this long journey with them.

From April 20-22, the boys have a series of mystery teasers planned, leading up to their anniversary date on April 23.

Just as the schedule, the boy group released a teaser photo in which they are enjoying one another's company as well as the warm sunlight.

Check out B1A4's teaser image above and stay tuned for the release of '10 Times' on April 23 KST.