Blake Shelton is pulling out all the stops when it comes to his proposal to Gwen Stefani — and he won't be doing it alone!

Sources reveal exclusively to Life & Style magazine that the country crooner is planning to pop the question during Christmastime, and her sons, Kingston, 10, Zuma, 7, and two-year-old Apollo, will be front and center.

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"Gwen will have the boys for Christmas this year, and she very much wants them to be involved," a source says."After all, Blake is going to be their stepfather."

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The engagement could not come at a better time for the 46-year-old singer, who is currently performing in front of very sparse crowds on her This Is What The Truth Feels Like concert tour.

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"Her ego has taken a huge hit because this tour has been tough," the source explains. "She can't wait until she can focus more on Blake and their wedding."

For more on the couple's engagement, pick up the latest issue of Life & Style magazine, on newsstands now!

Congrats to the happy couple! For more cute photos of Blake and Gwen, check out the gallery below!