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 ...

By Gil Kaufman Gwen Stefani jumped in the wayback machine ... Stefani sang the beat-heavy “Hollaback Girl” into a banana-shaped shaker as the veteran hip-hip group buzzed on kazoos and other ...

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 ...

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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's Son Zuma, 16, Is Catching Up to Stepdad Blake Shelton's Height in Sweet Family Photo from NFL Game Gwen Stefani 'Didn't Know How to Protect My Kids' After Divorce: My 'Dream' Was ...

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 ...

Tonight on “The Voice,” the Playoffs kicked off with veteran coach Gwen Stefani bringing her final five artists to the stage ...