Best Chinese OST songs!

Please help me find an OST. It's now driving me mad as i keep humming the same bit but just can't find it. Hopefully someone can recognise it.

So it is a chinese OST from a drama. Its a duet (Female and Male) and it could well be a OST that has been used before but i would say i hear it maybe a year or so ago.

The chorus is mixed lyrics of Chinese and English.  All i can gather from memory is the female sings something like don't let go or forever and repeats and then the male raps/sings something Chinese and then at the end of the chorus it something like 'i do love you forever'.

I believe it from a modern day drama rather than a period drama and is a teen romance type like perfect and casual or my unicorn girl (but its not from them). Its an upbeat type of song rather then slow and somber.

Any help gratefully received, i won't give up till i find it.

Zhou Shen (周深) - Cocoon 茧 l The Long Ballad 长歌行 Ost.

界 (Boundary) - 袁娅维 (Tia Ray)《长月烬明 Till the End of the Moon

Forever Star (hidden love)- Yi Hao Zhang

 Shenmi:

From the drama Wonderland of Love

Like it! For those involved in creative projects or productions like this and looking to boost their visibility, especially in the music and entertainment industry, considering a promotional strategy is key. Site where you can find like itunes top 100 germany be particularly useful, helping to increase exposure and reach a wider audience effectively