Jackie Jackson isn't the only surprise of the show. Leslie's team is also hard at work to pull off a shocker for one of the Backstreet Boys' biggest fans. "I put the team on a mission to find the biggest fan in America," she says.

The team found Noelle and will have something special waiting for her at the airport. "The girls are flying into O'Hare, the second busiest airport in the country," Leslie says. "The Backstreet Boys will be at the gate and they will sing one of their songs." 

To help her pull off the surprise, Leslie enlists the help of senior production assistant Gwen.

Watch Leslie brief Gwen. 

"I feel like Leslie's leaning on me a little bit more to make this happen," Gwen says. "So I'm a little nervous."