If Justin Timberlake isn't one of the coolest musicians around I don't know who is. Justin had a concert in Louisville, Kentucky and after singing his song, That Girl, mr bringing sexy back abruptly stopped his Louisville, Ky., concert Sunday night to help one fan on stage to propose to his girlfriend. Timberlake said, Josh called earlier, he's got something he wants to tell you," Timberlake said as he escorted Joshua Clemons and Kim Martin on stage. That's went Joshua got on one knee to propose to Kim. "I was just like, 'There's no way, there's no way this is happening,'" Kim later told Louisville's WDRB TV.