WATCH: ‘Britain’s Got Talent’ 79-year-old dancer takes Simon from yawns to cheers

Britain's Got Talent - YouTube

Britain's Got Talent - YouTube

When this 79-year-old woman walked on stage, “Britain’s Got Talent” judge Simon Cowell didn’t seem enthused.

But when she started to dance, she took Cowell from yawns to cheers!

Check out her energetic performance.