Gwyneth Paltrow
The Iron Man actress received backlash for her tweet accompanied with a photo of Jay-Z and Kanye West, "N****s in Paris for real," which upset many to say the least.
Nev Schulman
The Catfish star apologized for a since deleted tweet which read, ""#BlackGirlsRock I totally agree. They also tend to #catfish a lot. Just sayin''"
Jason Biggs
The Orange is the New Black star found himself in hot water after he tweeted from his account, "Anyone wanna buy my Malaysian Airlines frequent flier miles?"
Lindsay Lohan
The Mean Girls actress wrote this offensive tweet after having some fun at a Yeezus concert, but later removed it.
Keri Hilson
The singer found herself dealing with accusations of being insensitive after tweeting about a celebrity look-a-like, "*gasp* Amy Winehouse resurrected to party w/ me!!! (seriously, uncanny resemblance)."
Ashton Kutcher
The Two and a Half Men actor deleted a controversial tweet protesting the firing of Joe Paterno amid the sex-abuse scandal at Penn State. "How do you fire Jo Pa? #insult #noclass as a hawkeye fan I find it in poor taste."
Ice-T
The Law & Order star had a few less than kind things to say about Russell Anderson's suicide from Real Housewives of Beverly Hills, "Bad Joke… But alotta those wives would make me consider it."
Michael Moore
The director posted his disliking about American Sniper's depiction of Chris Kyle, "My uncle killed by sniper in WW2. We were taught snipers were cowards. Will shoot u in the back. Snipers aren't heroes. And invaders r worse." He also tweeted, "Tomorrow's Sunday School (1) What Would Jesus Do? Oh, I know what he'd do — hide on top of a roof and shoot people in the back!"
Alec Baldwin
The 56-year-old actor refused to stop playing a game on his Ipad so when he was escorted off a plane, he wrote, "Flight attendant on American reamed me out 4 playing WORDS W FRIENDS while we sat at the gate, not moving, #nowonder-americaairisbankrupt."
Roseanne Barr
The comedian posted a bloody photo of her face on Twitter with the caption, "Got in a tussle w bill cosby. U shoyld see that mfer."
Chris Brown
The R&B artist went on a full rant about former Disney starlet Adrienne Bailon calling her a "basic bitch" and even dragged Tamar Braxton into the drama, "You the same bitch having threesomes like the rest of these hoes. U tried it too Tamara."
Jaden Smith
The After Earth star received plenty of negative feedback for his tweet, "If Everybody In The World Dropped Out Of School We Would Have A Much More Intelligent Society . . . Everybody Get Off Your Phones And Go Do What You Actually Wanna Do."
Kim Kardashian
"Pic from my shoot yesterday...good kitty cat!" Kim tweeted before having to provide this update about holding a kitty up by the neck: "Rest assured, the owner and vet were on set and showed me how to pick him up. The cat was not harmed in any way."
Amanda Bynes
The starlet once regularly commented on the ugliness of a slew of A-list stars including the Canadian rapper, "@drake please don't think you're good looking! Ew!...I'll post ugly pics of @Drake every time I see one! Not hard ;)...Ugly far apart eyes."
Hugh Jackman
The Chappie star was visiting his native country as part of a world tour promoting his new film and wrote, "Having lunch on the harbor [sic] across from the Opera Center. Loving life!" The name he botched is Australia's most famous building, known as the Opera House.
Anthony Weiner
The man had once hoped to be mayor of New York City, but with a tweet of just 24 characters that consisted of an X-rated photo, his political career and public image were completely destroyed.
Roger Ebert
In the midst of the grief over Jackass star Ryan Dunn's death, the film critic tweeted, "Friends don't let jackasses drink and drive."