Happy Pledis 2nd Album is a charity single by the South Korean music label Pledis Entertainment's artists Son Dam-bi, Kahi, After School, NU'EST's JR and Baekho, Hello Venus's Yoo Ara and Lime and Pre-School Girl Park Jung-hyun. The album was released under the name Happy Pledis 2nd Album and is a charity release. As NU'EST and Hello Venus hadn't officially debuted then, the album doesn't include all the members of the two groups, and NU'EST went by the name "Pledis Boys". The album consisted of tracks "Love Letter", "Winter’s Tale", and "How Are You".