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.)

list ordered by

1
+ - 631 116
Kanye West is listed (or ranked) 1 on the list The Most Immature Adult Celebs
Kanye West age 39

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2
+ - 576 111
Kim Kardashian is listed (or ranked) 2 on the list The Most Immature Adult Celebs

3
+ - 503 163
Miley Cyrus is listed (or ranked) 3 on the list The Most Immature Adult Celebs
Miley Cyrus age 24

4
+ - 485 156
Justin Bieber is listed (or ranked) 4 on the list The Most Immature Adult Celebs
Justin Bieber age 23

5
+ - 378 128
Kris Jenner is listed (or ranked) 5 on the list The Most Immature Adult Celebs
Kris Jenner age 61

6
+ - 401 142
Nicki Minaj is listed (or ranked) 6 on the list The Most Immature Adult Celebs
Nicki Minaj age 34

7
+ - 471 191
Donald Trump is listed (or ranked) 7 on the list The Most Immature Adult Celebs
Donald Trump age 70

8
+ - 341 121
Chris Brown is listed (or ranked) 8 on the list The Most Immature Adult Celebs
Chris Brown age 27

9
+ - 316 113
Paris Hilton is listed (or ranked) 9 on the list The Most Immature Adult Celebs
Paris Hilton age 36

10
+ - 297 115
Kylie Jenner is listed (or ranked) 10 on the list The Most Immature Adult Celebs
Kylie Jenner age 19

11
+ - 294 119
Lindsay Lohan is listed (or ranked) 11 on the list The Most Immature Adult Celebs
Lindsay Lohan age 30

12
+ - 246 105
Perez Hilton is listed (or ranked) 12 on the list The Most Immature Adult Celebs
Perez Hilton age 39

13
+ - 240 122
Charlie Sheen is listed (or ranked) 13 on the list The Most Immature Adult Celebs
Charlie Sheen age 51

14
+ - 291 182
Ariana Grande is listed (or ranked) 14 on the list The Most Immature Adult Celebs
Ariana Grande age 23

15
+ - 108 33
Carrie Underwood is listed (or ranked) 15 on the list The Most Immature Adult Celebs

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16
+ - 282 197
Taylor Swift is listed (or ranked) 16 on the list The Most Immature Adult Celebs
Taylor Swift age 27

17
+ - 68 9
Farrah Abraham is listed (or ranked) 17 on the list The Most Immature Adult Celebs

18
+ - 176 116
Andy Dick is listed (or ranked) 18 on the list The Most Immature Adult Celebs
Andy Dick age 51

19
+ - 163 106
Carrot Top is listed (or ranked) 19 on the list The Most Immature Adult Celebs
Carrot Top age 52

20
+ - 192 144
Sarah Palin is listed (or ranked) 20 on the list The Most Immature Adult Celebs
Sarah Palin age 53

21
+ - 180 184
Shia LaBeouf is listed (or ranked) 21 on the list The Most Immature Adult Celebs
Shia LaBeouf age 30

22
+ - 126 137
Adam Sandler is listed (or ranked) 22 on the list The Most Immature Adult Celebs
Adam Sandler age 50

23
+ - 139 157
Kristen Stewart is listed (or ranked) 23 on the list The Most Immature Adult Celebs

24
+ - 74 77
Madonna is listed (or ranked) 24 on the list The Most Immature Adult Celebs
Madonna age 58

25
+ - 122 145
Alec Baldwin is listed (or ranked) 25 on the list The Most Immature Adult Celebs
Alec Baldwin age 59

26
+ - 140 176
Rihanna is listed (or ranked) 26 on the list The Most Immature Adult Celebs
Rihanna age 29

27
+ - 101 131
Johnny Knoxville is listed (or ranked) 27 on the list The Most Immature Adult Celebs

28
+ - 135 182
Britney Spears is listed (or ranked) 28 on the list The Most Immature Adult Celebs

29
+ - 11 7
Jennifer Lawrence is listed (or ranked) 29 on the list The Most Immature Adult Celebs

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30
+ - 20 23
Kevin Hart is listed (or ranked) 30 on the list The Most Immature Adult Celebs
Kevin Hart age 37

31
+ - 3 0
Tom Cruise is listed (or ranked) 31 on the list The Most Immature Adult Celebs
Tom Cruise age 54

32
+ - 22 28
Donatella Versace is listed (or ranked) 32 on the list The Most Immature Adult Celebs

33
+ - 77 109
Taylor Momsen is listed (or ranked) 33 on the list The Most Immature Adult Celebs
Taylor Momsen age 23

34
+ - 43 59
Beyoncé Knowles is listed (or ranked) 34 on the list The Most Immature Adult Celebs

35
+ - 106 154
Seth MacFarlane is listed (or ranked) 35 on the list The Most Immature Adult Celebs

36
+ - 93 135
Jessica Simpson is listed (or ranked) 36 on the list The Most Immature Adult Celebs

37
+ - 2 0
Katy Perry is listed (or ranked) 37 on the list The Most Immature Adult Celebs
Katy Perry age 32

38
+ - 2 0
Casey Anthony is listed (or ranked) 38 on the list The Most Immature Adult Celebs
Casey Anthony age 30

39
+ - 2 0
Stephen Curry is listed (or ranked) 39 on the list The Most Immature Adult Celebs
Stephen Curry age 29

40
+ - 2 0
Mariah Carey is listed (or ranked) 40 on the list The Most Immature Adult Celebs
Mariah Carey age 47

41
+ - 2 0
John McEnroe is listed (or ranked) 41 on the list The Most Immature Adult Celebs
John McEnroe age 58

42
+ - 2 0
Jodi Arias is listed (or ranked) 42 on the list The Most Immature Adult Celebs

43
+ - 2 1
O. J. Simpson is listed (or ranked) 43 on the list The Most Immature Adult Celebs
O. J. Simpson age 69

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44
+ - 1 1
Ronda Rousey is listed (or ranked) 44 on the list The Most Immature Adult Celebs
Ronda Rousey age 30

45
+ - 1 1
Demi Moore is listed (or ranked) 45 on the list The Most Immature Adult Celebs
Demi Moore age 54

46
+ - 1 1
Tiger Woods is listed (or ranked) 46 on the list The Most Immature Adult Celebs
Tiger Woods age 41

47
+ - 1 1
Alex Rodriguez is listed (or ranked) 47 on the list The Most Immature Adult Celebs

48
+ - 1 1
Charles, Prince of Wales is listed (or ranked) 48 on the list The Most Immature Adult Celebs

49
+ - 1 1
Odell Beckham Jr. is listed (or ranked) 49 on the list The Most Immature Adult Celebs

50
+ - 1 1
Kyrie Irving is listed (or ranked) 50 on the list The Most Immature Adult Celebs
Kyrie Irving age 25