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

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

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

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 ...

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

Gwen Stefani and The Roots on 'The Tonight Show Starring Jimmy Fallon' Gwen Stefani ain't no hollaback girl. On Tuesday, Nov. 26, the "Cool" singer, Jimmy Fallon and The Roots jammed out to her 2004 ...

Gwen Stefani has always been famed for her seemingly ageless good looks. But even longtime fans were shocked by how youthful ...

In an interview, Hollaback Girl hitmaker Gwen Stefani shared an anecdote of her initial songwriting days and how re-writing ...

The Tonight Show just debuted a new installment of Jimmy Fallon's popular “Classroom Instruments” series—this time with Gwen ...