The Voice Coaches: ‘That Song Changed Everything For Us’

The new season of NBC's "The Voice" is just a few weeks away.

With Gwen Stefani and Pharrell Williams new to the group, Carson Daly sat down with all four coaches for a candid discussion on the set of "The Voice" recently.

Getting each coach to open up about how they met and what connections they might have, Daly asked Gwen Stefani a few questions that led her to say that working with Pharrell (The Neptunes) "changed everything for us."

"We wrote that song quick. It changed everything for us," Stefani says in the clip below when talking about her first collaboration with Pharrell.

"The Voice" returns September 22 at 8/7c on NBC.