In what year was the album “My Heart Beat - Digital Single” released by Crystal Kay?

In what year was the album “My Heart Beat - Digital Single” released by Crystal Kay?: The album “My Heart Beat - Digital Single” was released in 2013 by Crystal Kay, featuring 2 tracks.
What is the most successful song from the album “My Heart Beat - Digital Single” by Crystal Kay?: “My Heart Beat” is the biggest hit from the album “My Heart Beat - Digital Single” by Crystal Kay.

Other artists of Japanese music