The hair transformations we've seen on social media don't lie; the end result of a beach wave perm is an undulating, mermaid-esque wave that, despite their valiant efforts, our creams, sprays ...

Ahn Jung-hwan from Channel A's 'The Family That Crossed the Line' surprises viewers by revealing that his signature hairstyle, the 'long wave perm', was actually done by Lee Hye-won at home.