Keith Urban Makes Surprise Hospital Visit to Serenade Terminally Ill Fan

I hope whatever mascara you're wearing today is waterproof, y'all.

Country music superstar Keith Urban made a surprise visit to a hospital in Ohio Thursday night to serenade a terminally ill fan who could no longer make it to his show.

Marissa English, 25, is reportedly Urban's #1 fan -- so a few of her nurses took to social media in hopes of arranging the rendezvous on her behalf. Luckily, Keith came through. Check out the pictures and videos below.