Wait until you see what Gwen Stefani just did to the ends of her hair.

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Earlier this week, Gwen Stefani unveiled her music video for the single “Spark the Fire”.

Appropriate to the name of the song, 45-year-old Stefani also debuted a flame-inspired hairdo.

One of your favourite Wonderland stars is now rocking a blonde bob.

It was at KISS FM'getts Jingle Ball in Los Angeles, where she performed the song for the first time. And here she is showcasing her new-do on the red carpet, courtesy of The Daily Mail:

If you're not one of the 1.5 million people that has already watched the "Spark the Fire" film clip, here it is in all its glory:

 Take a look at some of our other favourite new celebrity hair transformations.

What do you think of Gwen's firey strands?