Fortunately, as you can see it's a very easy design to replicate. I started with a base coat and then did two coats of Nails Inc Cadogan Square, which is a soft camel shade. It's really pretty and was the closest match I could find to the colour on the album cover. I then used Models Own Nail Art Pen in black to freehand the hashtags on my thumbs and ring fingers, and sealed with a top coat.
I applied the top coat before the black was entirely dry so it smudged a bit on my thumb, but apart from that I'm pleased with how it turned out. My brother (who I went to the concert with) was rather derisive and said no one would notice it, but that's not really the point, is it?