No costume? No problem.

Look no further than your own closet for these easy and creative Halloween costumes for you and your bestie.

Justin Bieber and Hailey Baldwin

PHOTO: Justin Bieber and Hailey Baldwin, July 12, 2018 in New York City, left. Two models pose as Justin Bieber and Hailey Baldwin in last-minute Halloween costumes, right.
Getty Images, ABC
Justin Bieber and Hailey Baldwin, July 12, 2018 in New York City, left. Two models pose as Justin Bieber and Hailey Baldwin in last-minute Halloween costumes, right.

What you need:

For Hailey:

Sports bra

Zip-up hoodie

Workout leggings

Sneakers

For Justin:

Oversized, hooded sweatshirt

Basketball shorts or jogger pants

Athletic sneakers

Hat

Meghan Markle and Prince Harry

PHOTO: Britain's Prince Harry and Meghan Markle, arrive for the Commonwealth Service at Westminster Abbey in London, March 12, 2018, left. Models pose as Prince Harry and Meghan Markle in last-minute Halloween costumes, right.
AP, ABC
Britain's Prince Harry and Meghan Markle, arrive for the Commonwealth Service at Westminster Abbey in London, March 12, 2018, left. Models pose as Prince Harry and Meghan Markle in last-minute Halloween costumes, right.

What you need:For Meghan:

Black dress

White jacket

Black heels or flats

White or black beret to match

For Harry:

Blue suit

Solid tie

Snapchat Filters

PHOTO: Two models pose as floral Snapchat filters in last-minute Halloween costumes
ABC
Two models pose as floral Snapchat filters in last-minute Halloween costumes

What you need:

To make the crowns:
Wire ribbon
Artificial flowers
Hot glue
Black clothing
Cell phone as prop

Alex Rodriguez and Jennifer Lopez

PHOTO: Two models pose as Alex Rodriguez and Jennifer Lopez in last-minute Halloween costumes.
ABC
Two models pose as Alex Rodriguez and Jennifer Lopez in last-minute Halloween costumes.

What you need:
For Alex:

A-Rod jersey
Yankee hat
Jeans
Sunglasses

For J.Lo:

Silver dress, similar to J.Lo's red carpet dress at VMA's
Blonde wig, if needed