[Photo Credit: Jeff Forney]

One Avenged Sevenfold fan got the opportunity of a lifetime when he was invited on stage to perform “Nightmare” with the band.

Read more: See Avenged Sevenfold’s Cirque du Soleil production come to life for first time at show

The fan took the stage with A7X when bassist Johnny Christ's illness was keeping him from singing the backup vocals. “Since Johnny Christ can't sing, I wanna take one of you guys,” singer M. Shadows said.

The band posted on their Facebook:

“Thank you @dandore98 for bailing us out last night in Nottingham. Johnny Christ was Down With the Sickness… You were great! #thestageworldtour” Check it out below.

A7X is currently on tour in the UK and Europe with Disturbed and In Flames.

Watch more: Trivium's Matt Heafy on how Avenged Sevenfold helped him get his voice back (literally)