Whether it's a selfie with a fellow celeb, a sparkly mani or the perfect chocolate souffle, celebs seriously know what they're doing when it comes to posting pics on Instagram (you can follow us too, BTW, @OKMagazine!) Putting up a successful Insta photo is a true skill and art form that these celebs have mastered this week. Huddle up close, it's cold out there:

Photos: Check Out Last Week's Best Celeb Instagram Pics

Khloe Kardashian: Because we want Kevin Hart in our family too, on Monday.

OK! News: Surprise! Khloe and Lamarr Welcome a New Addition!

Questlove: Because everyone needs a break, even on Justin Timberweek, on Tuesday.

OK! News: Late Night Booty Call – Justin Timberlake Busts Out His Moves

Tom Hardy: Because even when making this weird face he looks great, on Wednesday.

OK! News: Tom Hardy Cuddles With His Furry Friend

Justin Bieber: Because the accompanying caption made us feel bad for the little dude, on Thursday.

OK! News: 10 Unfortunate Things That Happened to Justin Bieber This Month

Emma Roberts: Because if you're ever late for #ThrowbackThursday there's always #FlashbackFriday, on Friday.

What was your favorite Insta pic of the week? Follow us on Twitter and Instagram @OKMagazine.

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