Despite the sudden drop in temperatures in Korea over the weekend, many celebrities seemed undeterred as they shared their Halloween pictures on social media.

Here are some of the best celebrity costumes this year.

Hyeri as a corpse bride

(Hyeri's Instagram)

Hyeri, a member of Girl’s Day, turned into a corpse bride on Friday and shared her pictures on Instagram.

In a series of photos she uploaded from what she described as an “amazing Halloween,” the singer showed off her flawless Halloween makeup while wearing a white wedding dress and holding a carved pumpkin.

As her caption suggested, she was dressed up for the filming of the Halloween special episode of the variety show “Amazing Saturday.”

Hyomin as a policewoman

(Hyomin's Instagram)

Hyomin of T-ara channeled her inner policewoman in a picture where she arrested a “witch” and put her in handcuffs.

The singer wore a navy police uniform with a miniskirt -- a sexed-up version of the standard uniform for female officers.

Hyomin uploaded the photo with the caption “I’m going to arrest you,” with the hashtag in Korean “#JokingButNotreally.”

Wendy as a Minion

(Wendy's Instagram)

Wendy from Red Velvet dressed up as a Minion from the famous film series while fellow bandmate Joy dressed up as a police officer in a latex cat suit.

The two fully embraced the Halloween spirit a littler earlier than everyone else, appearing in Friday’s special episode of “Pajama Friends.”

Kim Dong-han as a vampire

(Kim Dong-han's Instagram)

Singer Kim Dong-han, who competed on Mnet’s reality survival show “Produce 101,” appeared onstage as a vampire this week to perform on “M Countdown.”

On “Good Night Kiss,” which aired Thursday, the singer appeared as a vampire in a long coat and red lipstick.

By Yim Hyun-su (hyunsu@heraldcorp.com)