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
670 125
Kanye West is listed (or ranked) 1 on the list The Most Immature Adult Celebs
Kanye West age 39

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2
612 121
Kim Kardashian is listed (or ranked) 2 on the list The Most Immature Adult Celebs

3
523 165
Justin Bieber is listed (or ranked) 3 on the list The Most Immature Adult Celebs
Justin Bieber age 23

4
538 176
Miley Cyrus is listed (or ranked) 4 on the list The Most Immature Adult Celebs
Miley Cyrus age 24

5
401 136
Kris Jenner is listed (or ranked) 5 on the list The Most Immature Adult Celebs
Kris Jenner age 61

6
425 151
Nicki Minaj is listed (or ranked) 6 on the list The Most Immature Adult Celebs
Nicki Minaj age 34

7
513 208
Donald Trump is listed (or ranked) 7 on the list The Most Immature Adult Celebs
Donald Trump age 70

8
368 127
Chris Brown is listed (or ranked) 8 on the list The Most Immature Adult Celebs
Chris Brown age 27

9
345 121
Paris Hilton is listed (or ranked) 9 on the list The Most Immature Adult Celebs
Paris Hilton age 36

10
322 119
Kylie Jenner is listed (or ranked) 10 on the list The Most Immature Adult Celebs
Kylie Jenner age 19

11
317 123
Lindsay Lohan is listed (or ranked) 11 on the list The Most Immature Adult Celebs
Lindsay Lohan age 30

12
266 109
Perez Hilton is listed (or ranked) 12 on the list The Most Immature Adult Celebs
Perez Hilton age 39

13
260 126
Charlie Sheen is listed (or ranked) 13 on the list The Most Immature Adult Celebs
Charlie Sheen age 51

14
311 191
Ariana Grande is listed (or ranked) 14 on the list The Most Immature Adult Celebs
Ariana Grande age 23

15
124 42
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
305 210
Taylor Swift is listed (or ranked) 16 on the list The Most Immature Adult Celebs
Taylor Swift age 27

17
78 14
Farrah Abraham is listed (or ranked) 17 on the list The Most Immature Adult Celebs
ColinBoddy added Farrah Abraham age 25

18
188 121
Andy Dick is listed (or ranked) 18 on the list The Most Immature Adult Celebs
Andy Dick age 51

19
172 112
Carrot Top is listed (or ranked) 19 on the list The Most Immature Adult Celebs
Carrot Top age 52

20
207 152
Sarah Palin is listed (or ranked) 20 on the list The Most Immature Adult Celebs
Sarah Palin age 53

21
201 191
Shia LaBeouf is listed (or ranked) 21 on the list The Most Immature Adult Celebs
Shia LaBeouf age 30

22
136 146
Adam Sandler is listed (or ranked) 22 on the list The Most Immature Adult Celebs
Adam Sandler age 50

23
88 86
Madonna is listed (or ranked) 23 on the list The Most Immature Adult Celebs
ColinBoddy added Madonna age 58

24
147 168
Kristen Stewart is listed (or ranked) 24 on the list The Most Immature Adult Celebs

25
17 3
Mariah Carey is listed (or ranked) 25 on the list The Most Immature Adult Celebs
JohnWade1 added Mariah Carey age 47

26
130 153
Alec Baldwin is listed (or ranked) 26 on the list The Most Immature Adult Celebs
Alec Baldwin age 59

27
148 186
Rihanna is listed (or ranked) 27 on the list The Most Immature Adult Celebs
Rihanna age 29

28
16 7
Kim Jong-un is listed (or ranked) 28 on the list The Most Immature Adult Celebs
JohnWade1 added Kim Jong-un age 34

29
14 7
Tom Cruise is listed (or ranked) 29 on the list The Most Immature Adult Celebs
JohnWade1 added Tom Cruise age 53

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30
144 188
Britney Spears is listed (or ranked) 30 on the list The Most Immature Adult Celebs

31
108 138
Johnny Knoxville is listed (or ranked) 31 on the list The Most Immature Adult Celebs

32
19 15
Jennifer Lawrence is listed (or ranked) 32 on the list The Most Immature Adult Celebs
ChrissyBaker added Jennifer Lawrence age 26

33
11 4
Casey Anthony is listed (or ranked) 33 on the list The Most Immature Adult Celebs
JohnWade1 added Casey Anthony age 30

34
10 5
Katy Perry is listed (or ranked) 34 on the list The Most Immature Adult Celebs
JohnWade1 added Katy Perry age 32

35
10 6
O. J. Simpson is listed (or ranked) 35 on the list The Most Immature Adult Celebs
JohnWade1 added O. J. Simpson age 69

36
9 5
Tiger Woods is listed (or ranked) 36 on the list The Most Immature Adult Celebs
JohnWade1 added Tiger Woods age 41

37
51 66
Beyoncé is listed (or ranked) 37 on the list The Most Immature Adult Celebs
MartinAustin added Beyoncé age 35

38
10 8
Hillary Clinton is listed (or ranked) 38 on the list The Most Immature Adult Celebs
JohnWade1 added Hillary Clinton age 69

39
101 140
Jessica Simpson is listed (or ranked) 39 on the list The Most Immature Adult Celebs

40
24 30
Kevin Hart is listed (or ranked) 40 on the list The Most Immature Adult Celebs
Natalie Yu added Kevin Hart age 37

41
8 7
Jodi Arias is listed (or ranked) 41 on the list The Most Immature Adult Celebs
JohnWade1 added Jodi Arias

42
110 159
Seth MacFarlane is listed (or ranked) 42 on the list The Most Immature Adult Celebs

43
5 4
Odell Beckham Jr. is listed (or ranked) 43 on the list The Most Immature Adult Celebs
JohnWade1 added Odell Beckham Jr. age 24

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44
5 6
Johnny Manziel is listed (or ranked) 44 on the list The Most Immature Adult Celebs
JohnWade1 added Johnny Manziel

45
23 34
Donatella Versace is listed (or ranked) 45 on the list The Most Immature Adult Celebs
ColinBoddy added Donatella Versace age 61

46
4 6
John McEnroe is listed (or ranked) 46 on the list The Most Immature Adult Celebs
JohnWade1 added John McEnroe age 56

47
78 118
Taylor Momsen is listed (or ranked) 47 on the list The Most Immature Adult Celebs
Taylor Momsen age 23

48
4 7
Alex Rodriguez is listed (or ranked) 48 on the list The Most Immature Adult Celebs
JohnWade1 added Alex Rodriguez age 41

49
3 6
Metta World Peace is listed (or ranked) 49 on the list The Most Immature Adult Celebs
JohnWade1 added Metta World Peace age 37

50
3 6
Bryce Harper is listed (or ranked) 50 on the list The Most Immature Adult Celebs
JohnWade1 added Bryce Harper age 24