JYJ Jaejoong's pre-released song, "A Sunny Day" has been ranked number 1 on the Japan iTunes single chart.

His agency stated today that his song had topped the iTunes chart and that it was his fifth time this year ranking number 1.

He ranked number 1 with his first mini album from this past January along with JYJ's song, "Only One" for the Incheon Asian Games.

His solo mini album, I, and repackage album, Y, were also both ranked number 1 on the album charts as well.

"A Sunny Day" is also ranked number 1 on the Thailand, Hong Kong and Taiwan iTunes charts.

His first album will officially release on October 29.