Christina Aguilera plans to marry Matthew Rutler at Christmas.

The Voice mentor, who is expecting her first child with her fiance, is reportedly scouting for tropical venues for their nuptials, as she wants to tie the knot a few months after their daughter is born.

"They love Hawaii, where they got engaged, but Christina is worries about privacy, so they might rent a private island," a source said.

The singer, who also has son, Max, six, from her first marriage to Jordan Bratman, wants a "laid back" wedding. "It will be a nondenominational ceremony. Last time Christina got married, it was officiated by a rabbi. This time, it will be a lot more laid back," the insider added.

Matt proposed to Christina in February, and it was previously revealed he spent a year designing the perfect engagement ring.