No matter how famous she gets, Selena Gomez will never get so big she forgets where she came from – which is why she'll be the maid of honor to one of cousins and closest childhood friends. And as you can imagine, Gomez takes her maid of honor duties very, very seriously, making her cousin's wedding one she won't forget.

selena gomez cousin
photo: Instagram/pmdeleon22

Gomez's cousin, Priscilla DeLeon, will soon walk down the aisle, with the singer serving as her #1 gal.

selena gomez cousin
photo: Instagram/pmdeleon22

Gomez kicked off her holiday weekend by traveling to Texas to help DeLeon pick out her wedding dress, which ended up being a big surprise for the bride-to-be.

"When your maid of honor makes your dream dress a reality and surprises you with it!" DeLeon captioned a quick video on Instagram. Though we haven't seen the dress yet, it sounds like Gomez made her cousin's dreams come true by buying her the dress she wanted more than anything.

By the looks of it, Gomez has been a major part of DeLeon's life, long before she was planning her wedding.

Aside from being MOH...

Maid of honor type

A post shared by Priscilla DeLeon (@pmdeleon22) on

... Gomez is also godmother to DeLeon's son.

Someone is happy to see his Tia! ???? #aidenjaytakesoverLA

A post shared by Priscilla DeLeon (@pmdeleon22) on

All signs point to one epic wedding happening soon.

selena gomez cousin
photo: Instagram/pmdeleon22