Viewers of the upcoming finale of Nicole Kidman's Hulu series Nine Perfect Strangers will hear a familiar voice as part of music featured in the episode. Country artist -- and Kidman's husband -- Keith Urban recently wrote and recorded a new song, "Crimson Blue," which will be included when the series finale airs Wednesday, Sept. 22.
According to Spotify song credits, Urban penned the song -- written and performed specifically for the show -- alongside Breland, Sean Small and Sam Sumser.
On Sept. 20, Urban promoted the tune via a video of himself concocting a very unique "Crimson Blue" smoothie, complete with blue milk, blue cheese, blueberries and, as Urban puts it, "special bananas from Tranquillum." The smoothie imitates the one Kidman's Nine Perfect Strangers character, Masha (the founder of fictional health and wellness center Tranquillum House), makes during the series. Taking another cue from the show, the actress makes an appearance in the video clip, dropping a red liquid into the blender and telling Urban, "Relax."