See Adorable Pic of Christina Aguilera & Summer Rain Trick-or-Treating at Adrienne Maloof's Home!
This Year's Hottest Halloween Costumes

This photo is a true Halloween treat.

Adrienne Maloof took to Instagram on Sunday night to reveal one famous couple who stopped by her home on the 31st for candy: Christina Aguilera and baby daddy Matt Rutler!

"Even the adults had fun trick-or-treating yesterday #Halloween #trickortreat," the former "Real Housewives of Beverly Hills" star captioned the pic. In the shot, Maloof is dressed as a sexy cop alongside X-tina, her fiance and the duo's adorable daughter Summer Rain.

Christina was rocking some sort of zombie flapper look, with Matt matching in a bloodied up suit. Their 15-month-old cutie was dressed in a pink cape and tutu, her eyes clearly on the pail of sweets her mom was holding.

We've been seeing quite a bit of little Summer these days.

1020_blake_newLaunch GalleryInstagramMore Cute Kids -- Celeb TwitPics

Last month, Ruter shared a pic of his daughter with Aguilera's "Voice" costar Blake Shelton.

While the country singer looked thrilled to take a photo with the tot, she looked less than thrilled -- and ready to hop back into her daddy's arms.

"Oh no, not Uncle Blake ahhhhh," Rutler captioned the hilarious candid.

What do you think of their costumes this year? Sound off below!

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