Gwen Stefani, Jimmy Fallon and The Roots sang 'Hollaback Girl' on classroom instruments during the Nov. 26 episode of 'The ...

The singer revisited the iconic hit from her 2004 debut solo album on Tuesday night's (Nov. 26) "Tonight Show." ...

Gwen Stefani stepped into a time machine with Jimmy Fallon and the Roots on The Tonight Show to perform her 2005 hit ...

Gwen Stefani ain't no hollaback girl. On Tuesday, Nov. 26, the "Cool" singer, Jimmy Fallon and The Roots jammed out to her 2004 hit song "Hollaback Girl" on classroom instruments — and it was ...

By Gil Kaufman Gwen Stefani jumped in the wayback machine on The Tonight Show on Tuesday night (Nov. 26) when she joined host Jimmy Fallon and house band The Roots for a run through one of her ...

The singer released her fourth solo studio album 'Bouquet' earlier this month Todd Owyoung/NBC via Getty Jimmy Fallon, Gwen Stefani and The Roots on 'The Tonight Show Starring Jimmy Fallon' Gwen ...

Gwen Stefani stepped into a time machine with Jimmy Fallon and the Roots on The Tonight Show to perform her 2005 hit “Hollaback Girl.” Using a banana as a microphone, The Voice host sang the ...

While it’s unquestionably currently pumpkin spice season, Gwen Stefani had another flavor in mind during her recent ...

Gwen Stefani styled back-to-back layered looks for her appearance on “The Tonight Show Starring Jimmy Fallon” on Monday in New York City and ini a preview for the upcoming episode of “The Voice.” The ...

Gwen Stefani's "Hollaback Girl" is a sassy spelling lesson, so it's fitting that she'd finally take it into the classroom. In ...