Harry Styles & Taylor Russell Hold Hands During Stroll

You'll simply adore this show of support.

Harry Styles was on-hand to see rumored new girlfriend Taylor Russell take her final bow as The Effect—the West End play she's starred in since late summer—ended its limited run in London.

In fact, the "As It Was" singer joined the Bones and All actress and her castmates at a low-key celebration after the show, during which they were seen relaxing on a balcony together. For the occasion, Taylor, 29, kept it effortlessly chic in a black maxi skirt, white tee and navy jacket, her hair pulled back into a sleek bun. For his part, Harry, also 29, painted a similar image, in a black jacket a…