We're back for another installment of Instagram posts from K-pop's biggest stars! Check out what your favorite celebrities were up to this week:

GOT7's Mark and BTOB's Peniel showed brotherly love

EXO in their Santa costumes

Super Junior-M's Henry signing a baby's butt

f(x)'s Amber being carried by her manager

ZE:A's Kwanghee enjoying Christmas lights in NYC

BigBang's G-Dragon chilling

FT Island's Lee Hongki looking mature with a mustache

miss A's Suzy selfie time

BTOB′s Yook Sung Jae really let his voice be heard

Girls' Generation's Sunny silly selfie

JYJ's Jaejoong looking good and back to work

Girls' Generation's Sooyoung with her lovely Christmas gifts

Pinocchio star Lee Jong Suk on Christmas

Super Junior's Leeteuk in Switzerland

4Minute's HyunA got herself a hot waffle on Christmas day

Super Junior's Donghae posted his lovely Christmas tree

GOT7's JB looks cold in his Bart Simpson's hat

Crayon Pop's Soyul shared her lovely treat for Christmas

FT Island's Hongki not feeling well

Girls' Generation's Tiffany poses with Seohyun

SISTAR's Dasom looking pretty along with her friends

BigBang's G-Dragon showed off his bracelet

SHINee's Key busy talking a call

Nine Muses Minha and Kyungri ready to celebrate the holidays with balloons

Girl's Day Hyeri didn't forgot to greet her fans Merry Christmas

Super Junior's Heechul hangs out with his friends

EXO's Chanyeol really loves his pup

miss A's Jia gets a special prize

Park Shin Hye bonds with her "Pinocchio" cast members

Check back next week for more Instagram updates from your favorite stars!