So I saw some photos on Facebook (I think), which were of a subject in colour with the background in black & white, so I thought I’ll have a go at that.
So a quick google search later & I found this quick tutorial on youtube:
How to make background black & white in PhotoShop
Now this tutorial is based on Photoshop CS6, whilst I’m using PhotoShop CC 2015.5 so it’s worth checking that this will work on your version of PhotoShop.
So anyway hope you like the results, please feel free to comment, like & share