One of These Nights (Red Velvet song)

To appease their disappointed fans, the band apologized for the delay on the March 16 broadcast of the radio show 'Good Morning FM', where they also discussed their latest album and single.

[12] Tamar Herman of Billboard emphasized the track's "soaring piano, strings, and tinkling chimes" which sits beneath the group's voices "to build the song up to a dramatic finale".

[13] It was composed by Hwang Chan-hee, Andreas Öberg, Maria Marcus and penned by Seo Ji-eum of Jam Factory, in the key of F♯ minor and a tempo of 134 beats-per-minute.

[15] Jeff Benjamin of Fuse opined that it felt like a continuation to the music video of their 2015 single "Automatic" with its transitions and dream-like scenes.

The members' styling were compared to Disney princesses, where Irene is Snow White, Yeri passed out in a boat in a long pink gown is Sleeping Beauty, and Wendy with her bright red hair and fishtail dress is Ariel.

[19] For the song's promotion, the group held a special broadcast on the Naver app V Live on March 15, 2016, revealing their new hairstyles for the first time.

[10] Red Velvet then began their music show promotions through a live performance of "One of These Nights" and another track from their album, "Cool Hot Sweet Love" on M!

Tamar Herman of Billboard commented that "it's nice to see Red Velvet turn back to their velvety side", and also added that while the song is "not as bouncy as 'Dumb Dumb'", it is no less captivating.

[13] Jeff Benjamin of Fuse called the transition "a remarkably bold move for the group, at a time when every K-pop act is looking to score its boldest, catchiest dance hit".

[11] Writing for The Star, Chester Chin noted that it's "uncomfortably uncharacteristic upon first listen" because of the group's past songs which were more upbeat, but praised its indie sensibilities as "an assured step in the right direction" in a time where majority of the releases from K-pop "focus on the brash and bombastic".