Gwen Stefani's 'Furious' With Blake Shelton Over Miley Cyrus — Inside The EXPLOSIVE Feud!

Gwen Stefani isn't on this current season of The Voice, but she is still involved in all the on-set drama!

A source exclusively told OKMagazine.com that the singer is not a fan of her boyfriend, Blake Shelton's newest co-star, Miley Cyrus! “When Miley turned up rocking Gwen’s signature blonde beehive for The Voice’s promotional photo shoot, Blake thought she looked adorable and texted Gwen a quick snap of her look,” said the insider.

The former No Doubt singer was already annoyed with the 23-year-old pop star, but after Blake sent her the photo, "Gwen was furious." The insider added, "She’s already suspicious of Miley’s flirty ways, and dressing like her younger self really set off the warning bells.”

Do you think Gwen should be worried about Miley on The Voice set? Let us know your thoughts in the comments section!