celebrities The Most Immature Adult Celebs  

Celebrity Lists
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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
726 135
Kanye West is listed (or ranked) 1 on the list The Most Immature Adult Celebs
Kanye West age 39

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2
650 130
Kim Kardashian is listed (or ranked) 2 on the list The Most Immature Adult Celebs

3
570 177
Justin Bieber is listed (or ranked) 3 on the list The Most Immature Adult Celebs
Justin Bieber age 23

4
575 195
Miley Cyrus is listed (or ranked) 4 on the list The Most Immature Adult Celebs
Miley Cyrus age 24

5
434 142
Kris Jenner is listed (or ranked) 5 on the list The Most Immature Adult Celebs
Kris Jenner age 61

6
563 221
Donald Trump is listed (or ranked) 6 on the list The Most Immature Adult Celebs
Donald Trump age 70

7
456 164
Nicki Minaj is listed (or ranked) 7 on the list The Most Immature Adult Celebs
Nicki Minaj age 34

8
392 136
Chris Brown is listed (or ranked) 8 on the list The Most Immature Adult Celebs
Chris Brown age 27

9
371 126
Paris Hilton is listed (or ranked) 9 on the list The Most Immature Adult Celebs
Paris Hilton age 36

10
349 130
Kylie Jenner is listed (or ranked) 10 on the list The Most Immature Adult Celebs
Kylie Jenner age 19

11
342 131
Lindsay Lohan is listed (or ranked) 11 on the list The Most Immature Adult Celebs
Lindsay Lohan age 30

12
286 115
Perez Hilton is listed (or ranked) 12 on the list The Most Immature Adult Celebs
Perez Hilton age 39

13
276 130
Charlie Sheen is listed (or ranked) 13 on the list The Most Immature Adult Celebs
Charlie Sheen age 51

14
333 198
Ariana Grande is listed (or ranked) 14 on the list The Most Immature Adult Celebs
Ariana Grande age 23

15
93 18
Farrah Abraham is listed (or ranked) 15 on the list The Most Immature Adult Celebs
ColinBoddy added Farrah Abraham age 25

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16
325 223
Taylor Swift is listed (or ranked) 16 on the list The Most Immature Adult Celebs
Taylor Swift age 27

17
128 58
Carrie Underwood is listed (or ranked) 17 on the list The Most Immature Adult Celebs

18
196 125
Andy Dick is listed (or ranked) 18 on the list The Most Immature Adult Celebs
Andy Dick age 51

19
183 117
Carrot Top is listed (or ranked) 19 on the list The Most Immature Adult Celebs
Carrot Top age 52

20
216 157
Sarah Palin is listed (or ranked) 20 on the list The Most Immature Adult Celebs
Sarah Palin age 53

21
217 195
Shia LaBeouf is listed (or ranked) 21 on the list The Most Immature Adult Celebs
Shia LaBeouf age 30

22
37 11
Kim Jong-un is listed (or ranked) 22 on the list The Most Immature Adult Celebs
JohnWade1 added Kim Jong-un age 34

23
100 92
Madonna is listed (or ranked) 23 on the list The Most Immature Adult Celebs
ColinBoddy added Madonna age 58

24
30 11
Mariah Carey is listed (or ranked) 24 on the list The Most Immature Adult Celebs
JohnWade1 added Mariah Carey age 47

25
27 10
Tom Cruise is listed (or ranked) 25 on the list The Most Immature Adult Celebs
JohnWade1 added Tom Cruise age 54

26
145 158
Adam Sandler is listed (or ranked) 26 on the list The Most Immature Adult Celebs
Adam Sandler age 50

27
22 7
O. J. Simpson is listed (or ranked) 27 on the list The Most Immature Adult Celebs
JohnWade1 added O. J. Simpson age 69

28
21 7
Casey Anthony is listed (or ranked) 28 on the list The Most Immature Adult Celebs
JohnWade1 added Casey Anthony age 30

29
154 176
Kristen Stewart is listed (or ranked) 29 on the list The Most Immature Adult Celebs

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30
137 159
Alec Baldwin is listed (or ranked) 30 on the list The Most Immature Adult Celebs
Alec Baldwin age 59

31
22 11
Katy Perry is listed (or ranked) 31 on the list The Most Immature Adult Celebs
JohnWade1 added Katy Perry age 32

32
23 14
Hillary Clinton is listed (or ranked) 32 on the list The Most Immature Adult Celebs
JohnWade1 added Hillary Clinton age 69

33
156 195
Rihanna is listed (or ranked) 33 on the list The Most Immature Adult Celebs
Rihanna age 29

34
26 22
Jennifer Lawrence is listed (or ranked) 34 on the list The Most Immature Adult Celebs
ChrissyBaker added Jennifer Lawrence age 26

35
153 194
Britney Spears is listed (or ranked) 35 on the list The Most Immature Adult Celebs

36
113 143
Johnny Knoxville is listed (or ranked) 36 on the list The Most Immature Adult Celebs

37
14 10
Tiger Woods is listed (or ranked) 37 on the list The Most Immature Adult Celebs
JohnWade1 added Tiger Woods age 41

38
110 142
Jessica Simpson is listed (or ranked) 38 on the list The Most Immature Adult Celebs

39
12 8
Johnny Manziel is listed (or ranked) 39 on the list The Most Immature Adult Celebs
JohnWade1 added Johnny Manziel age 24

40
12 8
Odell Beckham Jr. is listed (or ranked) 40 on the list The Most Immature Adult Celebs
JohnWade1 added Odell Beckham Jr. age 23

41
11 7
Metta World Peace is listed (or ranked) 41 on the list The Most Immature Adult Celebs
JohnWade1 added Metta World Peace age 37

42
12 10
Jodi Arias is listed (or ranked) 42 on the list The Most Immature Adult Celebs
JohnWade1 added Jodi Arias

43
30 36
Kevin Hart is listed (or ranked) 43 on the list The Most Immature Adult Celebs
Natalie Yu added Kevin Hart age 37

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44
27 34
Jim Carrey is listed (or ranked) 44 on the list The Most Immature Adult Celebs
Natalie Yu added Jim Carrey age 55

45
29 37
Donatella Versace is listed (or ranked) 45 on the list The Most Immature Adult Celebs
ColinBoddy added Donatella Versace age 61

46
56 76
Beyoncé Knowles is listed (or ranked) 46 on the list The Most Immature Adult Celebs
MartinAustin added Beyoncé Knowles age 35

47
116 163
Seth MacFarlane is listed (or ranked) 47 on the list The Most Immature Adult Celebs

48
11 13
Stephen Curry is listed (or ranked) 48 on the list The Most Immature Adult Celebs
JohnWade1 added Stephen Curry

49
6 8
Bryce Harper is listed (or ranked) 49 on the list The Most Immature Adult Celebs
JohnWade1 added Bryce Harper age 24

50
6 9
John McEnroe is listed (or ranked) 50 on the list The Most Immature Adult Celebs
JohnWade1 added John McEnroe age 58