On May 26, 2015, Seventeen held a showcase at the MBC Dream Centre in Ilsan, South Korea, where they performed two songs, "Adore U" and "Shining Diamond", from their forthcoming extended play (EP) 17 Carat.
[3] In 2016, Seventeen released a re-worked version of "Adore U" for their first studio album Love & Letter, sung by the group's Vocal Team.
[8] Jeff Benjamin reviewed the song for Billboard, commending the group for the distribution of lines and camera time among the "largest pop act, member-wise, in Korea".
[9] In a list of their top ten Seventeen summer songs, Kpop Herald described "Adore U" as one of the best K-Pop debuts of all time.
[10] In 2020, fans of yet-to-debut girl group Weeekly were asked to vote between "Adore U" and "Very Nice" for a cover performance at their debut showcase.