以干练的旋律和流行音乐而备受瞩目的制作人兼DJ DAUL宣告从新的安乐窝SEL出发，在3月31日发行了单曲专辑《Locked In》。 这张单曲《Locked In》是一首House节奏的R&B歌曲，讲述了永远只爱着一个人的爱情故事。DAUL轻快有节奏的声音，与Jiselle满魅力的嗓音形成了動聽易記的副歌，营造更加时尚的氛围，DAUL和Jiselle一起绘画了让人可以感受到春日里的温暖心动。 [Credit] Lyrics by 지셀 (Jiselle) Composed by DAUL, 지셀 (Jiselle), Maxx Song, C'SA Arranged by DAUL Guitar by Jeon Seunghyun Bass by Snozern Keyboard by DAUL Drums by DAUL Mixed by Jay Sung at The 400 Studio Mastered by 권남우 at 821 Sound Executive Producer SEL Cover Artwork by Playboy A&R saranghabsida, Eunbyeol Lee