celebrities The Most Immature Adult Celebs  

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List Rules Vote up the adult celebrities (18 or older) who you think are the most immature and don't act their age.

When it comes to celebrities who don't act their age, Hollywood pretty much has an endless supply. Not that acting like a kid is always a bad thing. Sometimes celebrities who are immature can be hilarious, entertaining us with their antics in movies or TV shows. (What kind of world would this be without Will Ferrell acting like a jealous step-brother, adorable elf, or self-obsessed anchorman?) But other times, immature celebrities can be super annoying.  Their constant attempts to prove just how "shocking" or "edgy" the are leads to ridiculously bad behavior that the whole world has to put up with.

So which famous immature people are the most childish of them all? This list will help us finally figure it out. Less than impressed with Miley's many Instagram photos of her new sex toys? Totally over naked selfies from Kim Kardashian-West? Literally can't stand anything Justin Bieber does? You're not alone! Make sure the worst offenders are at the top of this immature celebrity list! 

Vote up the celebrities who act immature on the most consistent basis. Here's hoping they finally grow up. (But don't hold your breath.)

1
+ - 578 108
Kanye West is listed (or ranked) 1 on the list The Most Immature Adult Celebs
Kanye West age 39

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2
+ - 527 100
Kim Kardashian is listed (or ranked) 2 on the list The Most Immature Adult Celebs

3
+ - 459 151
Miley Cyrus is listed (or ranked) 3 on the list The Most Immature Adult Celebs
Miley Cyrus age 24

4
+ - 443 145
Justin Bieber is listed (or ranked) 4 on the list The Most Immature Adult Celebs
Justin Bieber age 23

5
+ - 370 131
Nicki Minaj is listed (or ranked) 5 on the list The Most Immature Adult Celebs
Nicki Minaj age 34

6
+ - 342 119
Kris Jenner is listed (or ranked) 6 on the list The Most Immature Adult Celebs
Kris Jenner age 61

7
+ - 291 104
Paris Hilton is listed (or ranked) 7 on the list The Most Immature Adult Celebs
Paris Hilton age 36

8
+ - 310 116
Chris Brown is listed (or ranked) 8 on the list The Most Immature Adult Celebs
Chris Brown age 27

9
+ - 403 177
Donald Trump is listed (or ranked) 9 on the list The Most Immature Adult Celebs
Donald Trump age 70

10
+ - 269 105
Kylie Jenner is listed (or ranked) 10 on the list The Most Immature Adult Celebs
Kylie Jenner age 19

11
+ - 268 111
Lindsay Lohan is listed (or ranked) 11 on the list The Most Immature Adult Celebs
Lindsay Lohan age 30

12
+ - 266 124
Ariana Grande is listed (or ranked) 12 on the list The Most Immature Adult Celebs
Ariana Grande age 23

13
+ - 217 101
Perez Hilton is listed (or ranked) 13 on the list The Most Immature Adult Celebs
Perez Hilton age 39

14
+ - 218 116
Charlie Sheen is listed (or ranked) 14 on the list The Most Immature Adult Celebs
Charlie Sheen age 51

15
+ - 261 180
Taylor Swift is listed (or ranked) 15 on the list The Most Immature Adult Celebs
Taylor Swift age 27

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16
+ - 46 5
Farrah Abraham is listed (or ranked) 16 on the list The Most Immature Adult Celebs

17
+ - 160 111
Andy Dick is listed (or ranked) 17 on the list The Most Immature Adult Celebs
Andy Dick age 51

18
+ - 147 101
Carrot Top is listed (or ranked) 18 on the list The Most Immature Adult Celebs
Carrot Top age 52

19
+ - 55 12
Madonna is listed (or ranked) 19 on the list The Most Immature Adult Celebs
Madonna age 58

20
+ - 28 4
Deez Nuts is listed (or ranked) 20 on the list The Most Immature Adult Celebs
Deez Nuts

21
+ - 163 153
Shia LaBeouf is listed (or ranked) 21 on the list The Most Immature Adult Celebs
Shia LaBeouf age 30

22
+ - 128 125
Kristen Stewart is listed (or ranked) 22 on the list The Most Immature Adult Celebs

23
+ - 128 132
Sarah Palin is listed (or ranked) 23 on the list The Most Immature Adult Celebs
Sarah Palin age 53

24
+ - 17 3
Carrie Underwood is listed (or ranked) 24 on the list The Most Immature Adult Celebs

25
+ - 31 21
Beyoncé Knowles is listed (or ranked) 25 on the list The Most Immature Adult Celebs

26
+ - 129 142
Rihanna is listed (or ranked) 26 on the list The Most Immature Adult Celebs
Rihanna age 29

27
+ - 15 5
Su Pollard is listed (or ranked) 27 on the list The Most Immature Adult Celebs
Su Pollard age 67

28
+ - 17 8
Donatella Versace is listed (or ranked) 28 on the list The Most Immature Adult Celebs

29
+ - 111 126
Alec Baldwin is listed (or ranked) 29 on the list The Most Immature Adult Celebs
Alec Baldwin age 59

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30
+ - 13 4
Joe Swash is listed (or ranked) 30 on the list The Most Immature Adult Celebs
Joe Swash age 35

31
+ - 12 4
Phil Tufnell is listed (or ranked) 31 on the list The Most Immature Adult Celebs
Phil Tufnell age 50

32
+ - 128 152
Britney Spears is listed (or ranked) 32 on the list The Most Immature Adult Celebs

33
+ - 11 6
Kevin Hart is listed (or ranked) 33 on the list The Most Immature Adult Celebs
Kevin Hart age 37

34
+ - 96 119
Johnny Knoxville is listed (or ranked) 34 on the list The Most Immature Adult Celebs

35
+ - 8 6
Joe Pasquale is listed (or ranked) 35 on the list The Most Immature Adult Celebs
Joe Pasquale age 55

36
+ - 4 4
Piko Taro is listed (or ranked) 36 on the list The Most Immature Adult Celebs
Piko Taro

37
+ - 73 102
Taylor Momsen is listed (or ranked) 37 on the list The Most Immature Adult Celebs
Taylor Momsen age 23

38
+ - 101 142
Seth MacFarlane is listed (or ranked) 38 on the list The Most Immature Adult Celebs

39
+ - 89 126
Adam Sandler is listed (or ranked) 39 on the list The Most Immature Adult Celebs
Adam Sandler age 50

40
+ - 87 124
Jessica Simpson is listed (or ranked) 40 on the list The Most Immature Adult Celebs

41
+ - 6 13
Jim Carrey is listed (or ranked) 41 on the list The Most Immature Adult Celebs
Jim Carrey age 55

42
+ - 5 12
Idris Elba is listed (or ranked) 42 on the list The Most Immature Adult Celebs
Idris Elba age 44

43
+ - 6 14
Christian Bale is listed (or ranked) 43 on the list The Most Immature Adult Celebs

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44
+ - 5 14
Ryan Gosling is listed (or ranked) 44 on the list The Most Immature Adult Celebs
Ryan Gosling age 36

45
+ - 82 124
Lady Gaga is listed (or ranked) 45 on the list The Most Immature Adult Celebs
Lady Gaga age 31

46
+ - 4 14
Tom Hardy is listed (or ranked) 46 on the list The Most Immature Adult Celebs
Tom Hardy age 39

47
+ - 5 16
Ellen DeGeneres is listed (or ranked) 47 on the list The Most Immature Adult Celebs

48
+ - 7 19
John Cena is listed (or ranked) 48 on the list The Most Immature Adult Celebs
John Cena age 39

49
+ - 95 148
Jimmy Fallon is listed (or ranked) 49 on the list The Most Immature Adult Celebs
Jimmy Fallon age 42

50
+ - 63 107
Macaulay Culkin is listed (or ranked) 50 on the list The Most Immature Adult Celebs