The couple ended up not only being totally game for Leno's silly prank, they also completely ROCKED it. After getting Will's attention, Stack offers to pay for his gas if he'll perform some karaoke.
After Stacks suggests Bon Jovi's "Livin' On A Prayer," he asks Sims, "Do you need the words?"
"No, I know 'em, baby!" Sims responds.
OH, does he know them, all right. His wife can sing, too! Monifa busts out a really good rendition of the Eurythmics' "Sweet Dreams," while her husband sings back up, and it's really just all too cute and hilarious for words.