I don't think I could've found a better performance for my Opry Spotlight than this one. The Grand Ole Opry never ceases to amaze me in its knack for surprising with a performance you don't see coming.

Well, here's one.

Last month, when Josh Turner was in the Opry line-up, his 98-year-old grandmother-in-law Lois Cunningham joined him.

No, I don't mean she came and sat in the audience.

She pulled up a piano bench on the Opry stage and, like a virtuoso, did this: