Dayton, Ohio concertgoers who bought tickets to see the Miranda Lambert and Dierks Bentley 'Locked and Reloaded Tour' Friday night (February 15th) got more than they bargained for. Blake Shelton made a guest appearance and performed a duet version of his new single, 'Sure Be Cool if You Did' with wife Miranda.

Blake made his way to the stage to uproarious applause. With guitar in hand, he helped himself to a stool next to Lambert, and they performed his brand new song as a duet.

It was truly a touching moment for everyone in attendance. To see Blake and Miranda sing together is great, but the way they showed affection for one another throughout the song with quick smiles and eye contact. Not to mention the fact that the performance was great.

When they finished, Miranda whipped the crowd into a frenzy, enthusiastically announcing "My amazing husband came out with me for the weekend!". Adorable.

Check out video of the happy couple's performance here:

While Lambert continues on her tour with Dierks Bentley, Shelton prepares for Season 4 of the hit TV show 'The Voice' on March 25th. He also announced this week that he will release 'Based on a True Story…' on March 26th.