celebrities The Most Immature Adult Celebs  

Celebrity Lists
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19.1k votes 1.8k voters 22.3k views 64 items

List Rules Vote up the adult celebrities (18 or older) who exhibit childish behavior and need to grow tf up.

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
684 249
Donald Trump is listed (or ranked) 1 on the list The Most Immature Adult Celebs
Donald Trump age 71

2
361 127
Perez Hilton is listed (or ranked) 2 on the list The Most Immature Adult Celebs
Perez Hilton age 40

3
654 220
Justin Bieber is listed (or ranked) 3 on the list The Most Immature Adult Celebs
Justin Bieber age 24

4
818 170
Kanye West is listed (or ranked) 4 on the list The Most Immature Adult Celebs
Kanye West age 40

5
731 169
Kim Kardashian is listed (or ranked) 5 on the list The Most Immature Adult Celebs

6
45 10
Bethenny Frankel is listed (or ranked) 6 on the list The Most Immature Adult Celebs
minkietight added Bethenny Frankel age 47

7
654 231
Miley Cyrus is listed (or ranked) 7 on the list The Most Immature Adult Celebs
Miley Cyrus age 25

8
453 158
Chris Brown is listed (or ranked) 8 on the list The Most Immature Adult Celebs
Chris Brown age 28

9
40 13
Ann Coulter is listed (or ranked) 9 on the list The Most Immature Adult Celebs
minkietight added Ann Coulter age 56

10
34 4
Trixie Mattel is listed (or ranked) 10 on the list The Most Immature Adult Celebs
toputime added Trixie Mattel

11
28 4
Roxxxy Andrews is listed (or ranked) 11 on the list The Most Immature Adult Celebs
toputime added Roxxxy Andrews

12
41 11
Caitlyn Jenner is listed (or ranked) 12 on the list The Most Immature Adult Celebs

13
418 151
Paris Hilton is listed (or ranked) 13 on the list The Most Immature Adult Celebs
Paris Hilton age 37

14
504 195
Nicki Minaj is listed (or ranked) 14 on the list The Most Immature Adult Celebs
Nicki Minaj age 35

The Most Embarrassing Celebrity Yearbook Photos

15
316 148
Charlie Sheen is listed (or ranked) 15 on the list The Most Immature Adult Celebs
Charlie Sheen age 52

16
395 153
Kylie Jenner is listed (or ranked) 16 on the list The Most Immature Adult Celebs
Kylie Jenner age 20

17
25 4
Carole Radziwill is listed (or ranked) 17 on the list The Most Immature Adult Celebs
toputime added Carole Radziwill age 54

18
122 31
Farrah Abraham is listed (or ranked) 18 on the list The Most Immature Adult Celebs
ColinBoddy added Farrah Abraham age 26

19
484 165
Kris Jenner is listed (or ranked) 19 on the list The Most Immature Adult Celebs
Kris Jenner age 62

20
20 3
Phi Phi O'Hara is listed (or ranked) 20 on the list The Most Immature Adult Celebs
carljr52910 added Phi Phi O'Hara

21
20 5
Detox is listed (or ranked) 21 on the list The Most Immature Adult Celebs
Detox age 32

Celebrities Nobody Cares About Anymore

22
384 144
Lindsay Lohan is listed (or ranked) 22 on the list The Most Immature Adult Celebs
Lindsay Lohan age 31

23
360 252
Taylor Swift is listed (or ranked) 23 on the list The Most Immature Adult Celebs
Taylor Swift age 28

24
21 3
Rush Limbaugh is listed (or ranked) 24 on the list The Most Immature Adult Celebs
Rush Limbaugh age 67

25
218 137
Andy Dick is listed (or ranked) 25 on the list The Most Immature Adult Celebs
Andy Dick age 52

26
18 5
Pope Francis is listed (or ranked) 26 on the list The Most Immature Adult Celebs
nbytrezws3dr7r654 added Pope Francis age 81

27
11 2
Alaska Thunderfuck 5000 is listed (or ranked) 27 on the list The Most Immature Adult Celebs

28
239 211
Shia LaBeouf is listed (or ranked) 28 on the list The Most Immature Adult Celebs
Shia LaBeouf age 31

The Most Obvious Celebrity Plastic Surgery

29
44 31
Katy Perry is listed (or ranked) 29 on the list The Most Immature Adult Celebs
JohnWade1 added Katy Perry age 33

30
119 158
Johnny Knoxville is listed (or ranked) 30 on the list The Most Immature Adult Celebs

31
156 173
Alec Baldwin is listed (or ranked) 31 on the list The Most Immature Adult Celebs
Alec Baldwin age 60

32
10 6
Kid Rock is listed (or ranked) 32 on the list The Most Immature Adult Celebs
Kid Rock age 47

33
118 152
Jessica Simpson is listed (or ranked) 33 on the list The Most Immature Adult Celebs

34
167 191
Kristen Stewart is listed (or ranked) 34 on the list The Most Immature Adult Celebs

35
168 212
Britney Spears is listed (or ranked) 35 on the list The Most Immature Adult Celebs

Celebrities With Heterochromia Iridis

36
37 53
Kevin Hart is listed (or ranked) 36 on the list The Most Immature Adult Celebs
Natalie Yu added Kevin Hart age 38

37
94 143
Macaulay Culkin is listed (or ranked) 37 on the list The Most Immature Adult Celebs

38
123 176
Seth MacFarlane is listed (or ranked) 38 on the list The Most Immature Adult Celebs

39
11 17
John McEnroe is listed (or ranked) 39 on the list The Most Immature Adult Celebs
JohnWade1 added John McEnroe age 59

40
51 25
Mariah Carey is listed (or ranked) 40 on the list The Most Immature Adult Celebs
JohnWade1 added Mariah Carey age 48

41
108 168
Lady Gaga is listed (or ranked) 41 on the list The Most Immature Adult Celebs
Lady Gaga age 29

42
6 5
Gary Busey is listed (or ranked) 42 on the list The Most Immature Adult Celebs
Gary Busey age 73

These Big-Name Celebs Have Been Hiding Their Real Names

43
169 211
Rihanna is listed (or ranked) 43 on the list The Most Immature Adult Celebs
Rihanna age 30

44
6 6
Iggy Azalea is listed (or ranked) 44 on the list The Most Immature Adult Celebs
Iggy Azalea age 27

45
5 4
Luke Bryan is listed (or ranked) 45 on the list The Most Immature Adult Celebs
Luke Bryan age 41

46
3 8
Avril Lavigne is listed (or ranked) 46 on the list The Most Immature Adult Celebs
Avril Lavigne age 33

47
86 129
Taylor Momsen is listed (or ranked) 47 on the list The Most Immature Adult Celebs
Taylor Momsen age 24

48
11 2
Logan Paul is listed (or ranked) 48 on the list The Most Immature Adult Celebs

49
108 180
Ashton Kutcher is listed (or ranked) 49 on the list The Most Immature Adult Celebs

50
11 3
Amy Schumer is listed (or ranked) 50 on the list The Most Immature Adult Celebs
Amy Schumer age 36