[8] In 2016, Pledis Entertainment released Minhyun and JR's music video for "Daybreak", which is part of NU'EST's fifth mini album Canvas.

[9] In 2017, NU'EST halted all promotions while JR, Baekho, Minhyun, and Ren participated in the second season of the series Produce 101.

[17] This was due to Pledis and Swing Entertainment coming to an agreement that allowed him to attend scheduled year-end shows and award ceremonies throughout January 2019 as a member of Wanna One.

[23] On June 26, 2020, Hwang was cast in the lead role of Go Eun-taek in the JTBC drama Live On, which aired from November 2020 to January 2021.

[24] A day after the release of NU'EST's second album Romanticize in April 2021, Pledis Entertainment announced that he was cast in the upcoming tvN drama Alchemy of Souls, written by the Hong Sisters.

[25] After days of speculation, it was confirmed on November 15, 2021, that Hwang, alongside the other members of Wanna One (except for Lai Kuan-lin), will reunite for a special stage performance at the 2021 Mnet Asian Music Awards in December 2021.

[27] On December 5, 2021, Hwang released the single "I'll Be With You Every Day" (모든 날을 너와 함께 할게), his first solo original soundtrack, for the MBC series The Red Sleeve.