Glee has welcomed Demi Lovato onto the show with open arms, as we've loved seeing her play Santana's (Naya Rivera) guitar-playin' love interest, Dani. Now, Demi is returning the favor as she invites one of our favorite Glee stars into her world. 

Demi won't have much time to film Glee appearances this year, as she has just launched her new world tour, Neon Lights. And in San Jose on February 11, the tour's second stop, Demi brought a surprise Glee guest onto the stage with her.

Indeed, Demi shocked the packed crowd when Chord Overstreet (Sam) backed her up on guitar while she belted out her song, "Made in the USA." The tune was the second single off her 2013 self-titled album and peaked at number 80 on the Billboard Hot 100 chart. 

It's great to see how comfortable Demi and Chord are onstage together, and Chord does a killer job with the guitar part. We even love how he mouths along with the words at times! "Give it up for Chord Overstreet," Demi tells her audience at the end of the song, eliciting huge cheers.

After the show, Chord tweeted: 

It's official: We're totally jealous of anyone who got to see these two perform together live! And is it just us, or does Glee definitely need to include a Dani-Sam duet at some point?

What do you think of Demi and Chord's performance? 

Source: YouTube, Chord on Twitter