Red Velvet performing "Bad Boy" like it's still 2018

Love to see it. Love that intro. They need a return to this era. Their concert version of this song proves it all. It's been five years and they still send chills down people's spines whenever they perform this song.

Quote from Marmaladeheart

BadBoy is their best song. I love everything about it.

It's the song that made me a fan in 2018. Since K-pop is so fast-paced, it's easy to forget how phenomenal some comebacks really are, but that era of theirs was something special.

Quote from FoReveries

The mesmerizing chillness of the song still gets to me, years later. Such a laid back song to dream away on

This song set the bar very high for 2018. Remember, the comeback was in January of that year, one of the best years of K-pop in my opinion.