LOS ANGELES, CA  [Monday Dec.13.2004]  /Mix103FM.com/ -- Gwen Stefani showed her Christmas spirit on Saturday by surprising concertgoers at LA-radio station KROQ's Almost Acoustic Christmas. NME.com reports that Stefani performed a two-song set just before 9 pm. Backed by the L.A.M.B. Harajuka girls, Stefani sang "Hollaback" and "What You Waiting For," from her solo album "Love, Angel, Music, Baby." Her husband, Gavin Rossdale from the rock band Bush, and No Doubt bandmate Tony Kanal cheered Stefani on.

Last week, Stefani received a Grammy nomination for Best Female Pop Performance for "What You Waiting For?", while No Doubt was nominated for Best Pop Performance By A Duo Or Group for "It's My Life."

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