Fox New commentator Geraldo Rivera is the latest celebrity to raise eyebrows on Twitter after posting another shirtless selfie. But this time, the photo from his vacation in Puerto Rico accompanied a tweet about Kobani, a key Syrian city that has been a focus in the battle against ISIS. The journalist used his official Twitter account to say "from PR, Kobani is the real Benghazi, the beseiged fortress where president really can & must save heroic defenders."
Take a look at some other celebrity Twitter gaffes.
CeeLo Green -- The singer posted a series of disturbing tweets about rape in September 2014 after pleading no contest to one felony count of giving a woman the drug Ecstasy at a dinner in 2012. The woman also accused Green of sexually assaulting her, but prosecutors concluded there was insufficient evidence for a charge. "If someone is passed out they're not even WITH you consciously! so WITH Implies consent," he tweeted in a post that's since been deleted. "Women who have really been raped REMEMBER!!!"
Jason Biggs -- The "Orange is the New Black" actor stirred a Twitter storm after Malaysia Airlines Flight 17 crashed in Ukraine with almost 300 people on board. Biggs joked, "Anyone wanna buy my Malaysian Airlines frequent flier miles?" The backlash came quickly with some saying the remark was too soon, and the event too sensitive, to joke about. Biggs originally blasted back at his social media critics, but later issued a four-tweet apology.
Stephen Colbert -- The hashtag #CancelColbert started to trend after a tweet from the verified Twitter account for "The Colbert Report" in March 2014 read, "I am willing to show the #Asian community I care by introducing the Ching Chong Ding Dong Foundation for Sensitivity to Orientals or Whatever." Colbert denied he was involved.
50 Cent -- The rapper has a long history of bad/improper tweets. Among the worst were "I just saw your picture fool, you look autistic" and "I don't want no special ed kids on my time line go follow somebody else."
Amanda Bynes -- The troubled child star did a lot of weird stuff on Twitter before entering rehab, but among the worst were her tweets calling celebrities like Jay-Z ugly.
Anthony Weiner -- Where do we begin? The politician was forced to resign from Congress after inappropriate sexual behavior that included briefly posting a lewd self-portrait for all of his constituents to see on Twitter.
Ashton Kutcher -- The "Two and a Half Men" star deleted his Twitter account after tweeting "How do you fire Jo Pa? #insult #noclass as a hawkeye fan I find it in poor taste." Kutcher didn't know that Joe Paterno had been canned for becoming entangled in the Jerry Sandusky sex abuse scandal at Penn State.
Charlie Sheen -- His bizarre tweets should earn him a spot in a Twitter Hall of Fame if one's ever created. Sheen also made the ultimate Twitter mistake of direct messaging his mobile number to Justin Bieber only for it to end up on his timeline.
Geraldo Rivera -- The Fox News commentator also made headlines in 2013 for a shirtless selfie he posted on Twitter that got him fired from a Catholic university speaking engagement. At the time he said, "I never do tequila when I'm alone, but I had this new bottle that someone had given me. The second one, my fate was sealed."
Courtney Love -- Where do we start? Fashion designer Dawn Simorangkir won a $430,000 defamation lawsuit based on a series of vicious tweets from Love accusing her of being a drug dealer and prostitute. Love also tweeted about her vagina to singer Lana Del Rey and accused Foo Fighters frontman Dave Grohl of hitting on her daughter.
Gilbert Gottfried -- The comedian was fired from his gig voicing the Aflac duck in commercials after he tweeted several insensitive jokes in response to the Japanese tsunami in March 2011.
Hayley Williams -- The "Paramore" singer accidentally posted a topless photo to her followers on Twitter in 2010 before hastily deleting it and blaming it on a hacker.
James Franco -- His performance as co-host of the Oscars was widely panned, but Franco took more heat after putting the blame on show producer Bruce Vilanch in a tweet he sent out.
Kenneth Cole -- The designer used the unrest in Egypt as a promotional opportunity to help push his spring collection in February 2011, tweeting "Millions are in uproar in #Cairo. Rumor is they heard our new spring collection is now available online."
Kim Kardashian -- The reality TV star has a few Twitter gaffes, from outing an air marshal aboard a flight to her pro-Israel tweet in November 2012 that set the social media site ablaze with disparaging messages and death threats.
Lindsay Lohan -- Just days after being given her first prison sentence for violating parole back in 2010, Lohan took to Twitter comparing her 90-day prison sentence to the stoning of Iranian women for adultery.