I remember when CL did this with her solo - she called in all her friends to be on the set because she was so scared about how the reception was that she wanted to at least remember having a good time together.
I wonder if it's like that for Amber. There was sooooooo much tea about her almost leaving the industry entirely during that one f(x) stint, and I feel like she has more going on in her head than she lets on.
I hope she kicks so much ass with this solo promo.