Results: 'It was completely insensitive': Zac Efron apologizes for tweet about Martin Luther King Jr after followers slam him for being 'disrespectful'

Zac Efron's somewhat short-sighted way of celebrating Martin Luther King Jr Day has landed him in a lot of hot water on social media. The Dirty Grandpa star has become the target of an onslaught of online anger after posting a photo of himself cruising down a California street in a convertible accompanied by a message saying he is 'grateful' for the civil rights activist and also for his own huge online following. 'I'm grateful for a couple things today: Martin Luther King Jr & 10 million followers on IG #MLKDay [sic],' he wrote on Monday. Hours later her backtracked: 'I have nothing but the greatest admiration and respect for Dr. Martin Luther King Jr. I realize that last night's post was completely insensitive and I apologize to anyone who I may have offended. So sorry. Z.'