In the 45-second teaser unveiled through A Cube Entertainment’s official YouTube channel, you can take a glimpse into the tunes of two outstanding idol singers’ first collaboration track.

“Love Day” is the first track from A Cube’s four season project, “A Cube for Season.” The song is written byKim Gun Woo, who wrote MC Mong’s “I Love You, Oh Thank You,” “Letter to You Part 2,” and A Pink’s “It Girl.” The lyrics are written by Kim Ee Na, whose previous work includes IU’s “Good Day” and “You & I.”