Dec 12, 2014 at 7:55 pm

Gwen Stefani Shows Off Adorable Son Apollo at Z100 Jingle Ball 2014

Gwen Stefani is all smiles while carrying her son Apollo backstage at 2014 Z100 Jingle Ball held at Madison Square Garden on Friday (December 12) in New York City.

The 45-year-old singer was also spotted hanging out with fellow The Voice judge Pharrell Williams, who will most likely bring her onstage to perform their new single “Spark the Fire” at the concert.

PHOTOS: Check out the latest pics of Gwen Stefani

After the concert, Gwen and Pharrell will be headed back to Los Angeles for the season seven finale of The Voice on Monday (December 15).

Check out an exclusive video of Gwen, Pharrell, Adam Levine, and Blake Shelton sending out a special message to the Troops as a part of WWE’s Tribute to the Troops, which celebrates servicemen and women’s dedication and commitment to our country. The tribute will air on Wednesday (December 17) on USA Network and re-air as a one-hour special on NBC on Saturday, December 27, from 8-9pm ET.

Gwen Stefani & Pharrell – Message for Troops