Entertainment

The Most Immature Adult Celebs  

Celebrity Lists
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24.7k votes 2.3k voters 28.4k views 74 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
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26
Rush Limbaugh is listed (or ranked) 26 on the list The Most Immature Adult Celebs
age 68
27
Shia LaBeouf is listed (or ranked) 27 on the list The Most Immature Adult Celebs
age 32
28
Amy Schumer is listed (or ranked) 28 on the list The Most Immature Adult Celebs
age 37
29
Alaska Thunderfuck 5000 is listed (or ranked) 29 on the list The Most Immature Adult Celebs
30
Katy Perry is listed (or ranked) 30 on the list The Most Immature Adult Celebs
JohnWade1 added age 34
31
Daisy is listed (or ranked) 31 on the list The Most Immature Adult Celebs
Daisy Yoo added Age 20
32
Ahin is listed (or ranked) 32 on the list The Most Immature Adult Celebs
Daisy Yoo added Age 20
33
Kid Rock is listed (or ranked) 33 on the list The Most Immature Adult Celebs
age 48
34
Alec Baldwin is listed (or ranked) 34 on the list The Most Immature Adult Celebs
age 60
35
Johnny Knoxville is listed (or ranked) 35 on the list The Most Immature Adult Celebs
36
Pope Francis is listed (or ranked) 36 on the list The Most Immature Adult Celebs
nbytrezws3dr7r654 added age 82
37
Lena Dunham is listed (or ranked) 37 on the list The Most Immature Adult Celebs
age 32
38
Jessica Simpson is listed (or ranked) 38 on the list The Most Immature Adult Celebs
39
Kristen Stewart is listed (or ranked) 39 on the list The Most Immature Adult Celebs
40
Britney Spears is listed (or ranked) 40 on the list The Most Immature Adult Celebs
41
Logan Paul is listed (or ranked) 41 on the list The Most Immature Adult Celebs
42
Macaulay Culkin is listed (or ranked) 42 on the list The Most Immature Adult Celebs
43
Yeonwoo is listed (or ranked) 43 on the list The Most Immature Adult Celebs
Daisy Yoo added Age 23
44
Kevin Hart is listed (or ranked) 44 on the list The Most Immature Adult Celebs
Natalie Yu added age 39
45
Seth MacFarlane is listed (or ranked) 45 on the list The Most Immature Adult Celebs
46
Iggy Azalea is listed (or ranked) 46 on the list The Most Immature Adult Celebs
age 28
47
Mariah Carey is listed (or ranked) 47 on the list The Most Immature Adult Celebs
JohnWade1 added age 48
48
Gary Busey is listed (or ranked) 48 on the list The Most Immature Adult Celebs
age 74
49
John McEnroe is listed (or ranked) 49 on the list The Most Immature Adult Celebs
JohnWade1 added age 60
50
Lady Gaga is listed (or ranked) 50 on the list The Most Immature Adult Celebs
age 32