Gwen Stefani and Blake Shelto
Couple expected to tie the knot in a low-key ceremony during Christmas Getty

Lovebirds Gwen Stefani and Blake Shelton are surely setting some couple goals as the musical duo continue to perform duets together. But there is one thing that the power couple don't seem to agree on, and that's about where to live once they have exchanged their wedding vows.

According to a report by InTouch weekly, the adorable pair are apparently debating on where to put down roots once they get married. "Where they are going to live has become an issue," a source close to the songstress told the publication, adding that the 46-year-old singer "feels she could never ditch California and live in Oklahoma as a full-time resident."

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On the other hand, the report claimed that Oklahoma-born Shelton doesn't want to live in Los Angeles full-time after he ties the knot with Stefani.

Deciding on where to live ultimately might prove a little challenging for this couple as Stefani is rooted in the West Coast.

"Her parents live there. The boys are in school there and all their friends are there," the source said, adding, "She doesn't want to take the boys away from their dad."

The Hollaback Girl hitmaker was previously married to English musician and actor Gavin Rossdale before she decided to end the relationship following an alleged cheating scandal. Newly single Shelton — who split from Miranda Lambert in July 2015 — found love with Stefani on the set of The Voice.

"Gwen's told Blake she'd be OK moving out of Beverly Hills and into a nearby place like Hidden Hills, which is known as horse country because of its sprawling ranches. But Blake argues that it would still be California," the source added.

"At heart, Blake is a very simple guy who loves to hunt and spend time on his ranch."