The new single from Dan + Shay is about as catchy as a country song can be, legally. The duo says 'Show You Off' has been a live hit since the first day they performed it. It's a great complement to '19 You + Me,' and they're just as excited about this track from 'Where It All Began.'

“It’s probably our favorite song to perform live,” Dan Smyers tells Taste of Country Nights. “It’s awesome driving around Nashville hearing it … it’s a great crowd participation song.”

Taste of Country also asked for the duo's all-time favorite crowd participation songs, and without much hesitation they gave impromptu performances of all three. The first:

“’You’re Love’ by the Outfield is a pretty good one,” Smyers says before Shay Mooney begins with "Josie's on a vacation far away / Come around and talk it over."

After Journey's 'Don't Stop Believin,' Mooney says Bryan Adams' '(Everything I Do) I Do It for You' is a great sing-along hit.

'Show You Off' is right up there, with a whistle and melody that's likely to get lodged in your head for days. Heck, they even get caught singing along to it.

“If our song comes on the radio," Smyers says, "I’m very thankful for it, but if the windows are down on my car … I don’t wanna drive up next to somebody and have them see me singing to my own song.”

That does happen elsewhere however. When the two men are together, any bystanders are likely to get an impromptu concert. Look for Dan + Shay to perform 'Show You Off' and other songs from their debut album while on tour with Blake Shelton this summer.