Sweet Sorrow revealed the teaser clip for the new title song.

On May 27, agency Music&New uploaded the teaser clip of "Pounding Heart", the title song of Sweet Sorrow's fourth album 'PART 1 'FOR LOVERS ONLY'."

The revealed teaser clip showed an analogue-style image slideshow of cassette tapes and music notes. The members' harmonious singing captured ears.

The title song "Pounding Heart" was composed, written, and produced by member Kim Young Woo. Music Director and producer of Busker Busker, Kim Ji Soo, also participated in the arrangement of the songs.

Agency staff stated: "Song "Pounding Heart" and other tracks will meet fans with a fresh and lovely Spring scent. Please support the new album".

Meanwhile, Sweet Sorrow will release their new album on June 2.