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
645 117
Kanye West is listed (or ranked) 1 on the list The Most Immature Adult Celebs
Kanye West age 39

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2
591 114
Kim Kardashian is listed (or ranked) 2 on the list The Most Immature Adult Celebs

3
503 157
Justin Bieber is listed (or ranked) 3 on the list The Most Immature Adult Celebs
Justin Bieber age 23

4
518 168
Miley Cyrus is listed (or ranked) 4 on the list The Most Immature Adult Celebs
Miley Cyrus age 24

5
412 143
Nicki Minaj is listed (or ranked) 5 on the list The Most Immature Adult Celebs
Nicki Minaj age 34

6
386 129
Kris Jenner is listed (or ranked) 6 on the list The Most Immature Adult Celebs
Kris Jenner age 61

7
491 197
Donald Trump is listed (or ranked) 7 on the list The Most Immature Adult Celebs
Donald Trump age 70

8
354 121
Chris Brown is listed (or ranked) 8 on the list The Most Immature Adult Celebs
Chris Brown age 27

9
327 116
Paris Hilton is listed (or ranked) 9 on the list The Most Immature Adult Celebs
Paris Hilton age 36

10
307 116
Kylie Jenner is listed (or ranked) 10 on the list The Most Immature Adult Celebs
Kylie Jenner age 19

11
303 120
Lindsay Lohan is listed (or ranked) 11 on the list The Most Immature Adult Celebs
Lindsay Lohan age 30

12
255 105
Perez Hilton is listed (or ranked) 12 on the list The Most Immature Adult Celebs
Perez Hilton age 39

13
246 122
Charlie Sheen is listed (or ranked) 13 on the list The Most Immature Adult Celebs
Charlie Sheen age 51

14
302 188
Ariana Grande is listed (or ranked) 14 on the list The Most Immature Adult Celebs
Ariana Grande age 23

15
117 35
Carrie Underwood is listed (or ranked) 15 on the list The Most Immature Adult Celebs
Guest_3ee351b7-7a02-4574-9514-18f585955ad2 added Carrie Underwood age 34

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16
72 10
Farrah Abraham is listed (or ranked) 16 on the list The Most Immature Adult Celebs
ColinBoddy added Farrah Abraham age 25

17
292 204
Taylor Swift is listed (or ranked) 17 on the list The Most Immature Adult Celebs
Taylor Swift age 27

18
181 116
Andy Dick is listed (or ranked) 18 on the list The Most Immature Adult Celebs
Andy Dick age 51

19
167 107
Carrot Top is listed (or ranked) 19 on the list The Most Immature Adult Celebs
Carrot Top age 52

20
199 146
Sarah Palin is listed (or ranked) 20 on the list The Most Immature Adult Celebs
Sarah Palin age 53

21
190 187
Shia LaBeouf is listed (or ranked) 21 on the list The Most Immature Adult Celebs
Shia LaBeouf age 30

22
132 139
Adam Sandler is listed (or ranked) 22 on the list The Most Immature Adult Celebs
Adam Sandler age 50

23
80 80
Madonna is listed (or ranked) 23 on the list The Most Immature Adult Celebs
ColinBoddy added Madonna age 58

24
143 162
Kristen Stewart is listed (or ranked) 24 on the list The Most Immature Adult Celebs

25
125 147
Alec Baldwin is listed (or ranked) 25 on the list The Most Immature Adult Celebs
Alec Baldwin age 59

26
143 180
Rihanna is listed (or ranked) 26 on the list The Most Immature Adult Celebs
Rihanna age 29

27
140 182
Britney Spears is listed (or ranked) 27 on the list The Most Immature Adult Celebs

28
103 133
Johnny Knoxville is listed (or ranked) 28 on the list The Most Immature Adult Celebs

29
7 2
Mariah Carey is listed (or ranked) 29 on the list The Most Immature Adult Celebs
JohnWade1 added Mariah Carey age 47

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30
6 1
Kim Jong-un is listed (or ranked) 30 on the list The Most Immature Adult Celebs
JohnWade1 added Kim Jong-un age 34

31
6 2
Tom Cruise is listed (or ranked) 31 on the list The Most Immature Adult Celebs
JohnWade1 added Tom Cruise age 54

32
5 1
Jodi Arias is listed (or ranked) 32 on the list The Most Immature Adult Celebs
JohnWade1 added Jodi Arias

33
5 1
Casey Anthony is listed (or ranked) 33 on the list The Most Immature Adult Celebs
JohnWade1 added Casey Anthony age 30

34
13 13
Jennifer Lawrence is listed (or ranked) 34 on the list The Most Immature Adult Celebs
ChrissyBaker added Jennifer Lawrence age 26

35
4 1
O. J. Simpson is listed (or ranked) 35 on the list The Most Immature Adult Celebs
JohnWade1 added O. J. Simpson age 69

36
95 136
Jessica Simpson is listed (or ranked) 36 on the list The Most Immature Adult Celebs

37
4 2
Katy Perry is listed (or ranked) 37 on the list The Most Immature Adult Celebs
JohnWade1 added Katy Perry age 32

38
107 155
Seth MacFarlane is listed (or ranked) 38 on the list The Most Immature Adult Celebs

39
20 26
Kevin Hart is listed (or ranked) 39 on the list The Most Immature Adult Celebs
Natalie Yu added Kevin Hart age 37

40
4 3
Hillary Clinton is listed (or ranked) 40 on the list The Most Immature Adult Celebs
JohnWade1 added Hillary Clinton age 69

41
77 112
Taylor Momsen is listed (or ranked) 41 on the list The Most Immature Adult Celebs
Taylor Momsen age 22

42
22 30
Donatella Versace is listed (or ranked) 42 on the list The Most Immature Adult Celebs
ColinBoddy added Donatella Versace age 61

43
44 63
Beyoncé Knowles is listed (or ranked) 43 on the list The Most Immature Adult Celebs
MartinAustin added Beyoncé Knowles age 35

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44
3 2
Tiger Woods is listed (or ranked) 44 on the list The Most Immature Adult Celebs
JohnWade1 added Tiger Woods age 41

45
3 3
Johnny Manziel is listed (or ranked) 45 on the list The Most Immature Adult Celebs
JohnWade1 added Johnny Manziel

46
2 2
John McEnroe is listed (or ranked) 46 on the list The Most Immature Adult Celebs
JohnWade1 added John McEnroe age 58

47
2 3
Alex Rodriguez is listed (or ranked) 47 on the list The Most Immature Adult Celebs
JohnWade1 added Alex Rodriguez age 41

48
2 3
Stephen Curry is listed (or ranked) 48 on the list The Most Immature Adult Celebs
JohnWade1 added Stephen Curry age 29

49
1 2
Demi Moore is listed (or ranked) 49 on the list The Most Immature Adult Celebs
JohnWade1 added Demi Moore age 54

50
1 2
Bryce Harper is listed (or ranked) 50 on the list The Most Immature Adult Celebs
JohnWade1 added Bryce Harper age 24