Isn't Justin Timberlake just the greatest guy on the planet?

At a concert stop in Louisville, on his "20/20 Experience" tour, he welcomed up a male fan to the side of the stage. Josh, who had previously contacted JT and his people, had a special surprise in store for his girlfriend, Kim - who was also attending the show.

"Josh and Kim, why don't you make your way up here," Timberlake spoke into the mic. The singer then introduced the couple to the crowd and said, "Josh called me earlier. He's got something he wants to tell you."

While Justin took the sidelines, Josh stole the spotlight as he got down on one knee and proposed to Kim. Although the crowd couldn't hear their exchange of words, everyone clapped when it became obvious that she had said "yes."