Celebrities The Most Immature Adult Celebs  

Celebrity Lists
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19.9k votes 1.9k voters 23.6k 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.)

1
729 265
Donald Trump is listed (or ranked) 1 on the list The Most Immature Adult Celebs
Donald Trump age 71

2
385 134
Perez Hilton is listed (or ranked) 2 on the list The Most Immature Adult Celebs
Perez Hilton age 40

3
690 228
Justin Bieber is listed (or ranked) 3 on the list The Most Immature Adult Celebs
Justin Bieber age 24

4
845 178
Kanye West is listed (or ranked) 4 on the list The Most Immature Adult Celebs
Kanye West age 40

5
764 174
Kim Kardashian is listed (or ranked) 5 on the list The Most Immature Adult Celebs

6
54 17
Bethenny Frankel is listed (or ranked) 6 on the list The Most Immature Adult Celebs
minkietight added Bethenny Frankel age 47

7
685 234
Miley Cyrus is listed (or ranked) 7 on the list The Most Immature Adult Celebs
Miley Cyrus age 25

8
478 162
Chris Brown is listed (or ranked) 8 on the list The Most Immature Adult Celebs
Chris Brown age 28

9
50 18
Ann Coulter is listed (or ranked) 9 on the list The Most Immature Adult Celebs
minkietight added Ann Coulter age 56

10
58 13
Caitlyn Jenner is listed (or ranked) 10 on the list The Most Immature Adult Celebs

11
42 8
Trixie Mattel is listed (or ranked) 11 on the list The Most Immature Adult Celebs
toputime added Trixie Mattel

12
33 7
Roxxxy Andrews is listed (or ranked) 12 on the list The Most Immature Adult Celebs
toputime added Roxxxy Andrews

13
432 154
Paris Hilton is listed (or ranked) 13 on the list The Most Immature Adult Celebs
Paris Hilton age 37

14
328 153
Charlie Sheen is listed (or ranked) 14 on the list The Most Immature Adult Celebs
Charlie Sheen age 52

15
516 199
Nicki Minaj is listed (or ranked) 15 on the list The Most Immature Adult Celebs
Nicki Minaj age 35

16
134 31
Farrah Abraham is listed (or ranked) 16 on the list The Most Immature Adult Celebs
ColinBoddy added Farrah Abraham age 26

17
412 158
Kylie Jenner is listed (or ranked) 17 on the list The Most Immature Adult Celebs
Kylie Jenner age 20

18
26 7
Carole Radziwill is listed (or ranked) 18 on the list The Most Immature Adult Celebs
toputime added Carole Radziwill age 54

19
495 168
Kris Jenner is listed (or ranked) 19 on the list The Most Immature Adult Celebs
Kris Jenner age 62

20
21 6
Phi Phi O'Hara is listed (or ranked) 20 on the list The Most Immature Adult Celebs
carljr52910 added Phi Phi O'Hara

21
23 8
Detox is listed (or ranked) 21 on the list The Most Immature Adult Celebs
Detox age 32

22
395 146
Lindsay Lohan is listed (or ranked) 22 on the list The Most Immature Adult Celebs
Lindsay Lohan age 31

23
372 260
Taylor Swift is listed (or ranked) 23 on the list The Most Immature Adult Celebs
Taylor Swift age 28

24
226 137
Andy Dick is listed (or ranked) 24 on the list The Most Immature Adult Celebs
Andy Dick age 52

25
26 9
Rush Limbaugh is listed (or ranked) 25 on the list The Most Immature Adult Celebs
Rush Limbaugh age 67

26
22 14
Pope Francis is listed (or ranked) 26 on the list The Most Immature Adult Celebs
nbytrezws3dr7r654 added Pope Francis age 81

27
15 4
Alaska Thunderfuck 5000 is listed (or ranked) 27 on the list The Most Immature Adult Celebs

28
248 214
Shia LaBeouf is listed (or ranked) 28 on the list The Most Immature Adult Celebs
Shia LaBeouf age 31

29
56 35
Katy Perry is listed (or ranked) 29 on the list The Most Immature Adult Celebs
JohnWade1 added Katy Perry age 33

30
17 9
Kid Rock is listed (or ranked) 30 on the list The Most Immature Adult Celebs
Kid Rock age 47

31
167 175
Alec Baldwin is listed (or ranked) 31 on the list The Most Immature Adult Celebs
Alec Baldwin age 60

32
122 163
Johnny Knoxville is listed (or ranked) 32 on the list The Most Immature Adult Celebs

33
173 196
Kristen Stewart is listed (or ranked) 33 on the list The Most Immature Adult Celebs

34
121 156
Jessica Simpson is listed (or ranked) 34 on the list The Most Immature Adult Celebs

35
42 60
Kevin Hart is listed (or ranked) 35 on the list The Most Immature Adult Celebs
Natalie Yu added Kevin Hart age 38

36
171 217
Britney Spears is listed (or ranked) 36 on the list The Most Immature Adult Celebs

37
97 148
Macaulay Culkin is listed (or ranked) 37 on the list The Most Immature Adult Celebs

38
13 21
John McEnroe is listed (or ranked) 38 on the list The Most Immature Adult Celebs
JohnWade1 added John McEnroe age 59

39
62 27
Mariah Carey is listed (or ranked) 39 on the list The Most Immature Adult Celebs
JohnWade1 added Mariah Carey age 48

40
124 182
Seth MacFarlane is listed (or ranked) 40 on the list The Most Immature Adult Celebs

41
115 170
Lady Gaga is listed (or ranked) 41 on the list The Most Immature Adult Celebs
Lady Gaga age 32

42
10 8
Gary Busey is listed (or ranked) 42 on the list The Most Immature Adult Celebs
Gary Busey age 73

43
11 10
Iggy Azalea is listed (or ranked) 43 on the list The Most Immature Adult Celebs
Iggy Azalea age 27

44
173 215
Rihanna is listed (or ranked) 44 on the list The Most Immature Adult Celebs
Rihanna age 30

45
22 3
Logan Paul is listed (or ranked) 45 on the list The Most Immature Adult Celebs

46
6 9
Luke Bryan is listed (or ranked) 46 on the list The Most Immature Adult Celebs
Luke Bryan age 41

47
21 4
Amy Schumer is listed (or ranked) 47 on the list The Most Immature Adult Celebs
Amy Schumer age 36

48
5 14
Avril Lavigne is listed (or ranked) 48 on the list The Most Immature Adult Celebs
Avril Lavigne age 33

49
15 6
Bella Thorne is listed (or ranked) 49 on the list The Most Immature Adult Celebs
Bella Thorne age 20

50
89 133
Taylor Momsen is listed (or ranked) 50 on the list The Most Immature Adult Celebs
Taylor Momsen age 24