Lovin You surprised me!
I was ready to write it off as another boring ballad (I don't understand Japanese so ballads are limited to enjoying the music, arrangements, vocals, etc) but the chorus kicked in and I was all about it.
Excited for this single!
As for Crystal's decline in popularity, I am sure its a combination of factors.
Her ethnicity/being perceived as a foreigner being one of them, the decline of r&b's popularity in Japan (or phasing out of the pop cycle), and of course the natural up and down of any long lasting career (a commercially successful/popular music career is not guaranteed
I think the most glaring "Oh." moment is that in the majority of Crystal's videos she is rarely the protagonist of the MV narrative, but rather the narrator.
Meaning time and time again they hire someone more "traditionally" Japanese in appearance to sell the love story and Kuri is regulated to being the omnipotent narrator-singer