Ariana Grande is sorry for her 4 July stint, wherein she was spotted licking doughnuts placed on a display counter and shouting "I hate America" and " I hate Americans".

In the apology letter, which she issued via her Twitter account, the Problem singer advocated healthy eating habits and explained how she gets upset about the rising number of childhood obesity cases in the US. However, the 22-year-old singer accepted that she was irresponsible while choosing her words.

"Need to clean up this mouth of mine and set a better example for my babes. I apologize and I love you, Always learning," Grande captioned her Twitter statement.

Here is what she had to say about the entire doughnut licking controversy.

"I am extremely proud to be an American and I've always made it clear that I love my country. What I said in a private moment with my friend, who was buying the donuts, was taken out of context and I am sorry for not using more discretion with my choice of words. As an advocate for healthy eating, food is very important to me and I sometimes get upset by how freely we as Americans eat and consume things without giving any thought to the consequences that it has on our health and society as a whole. The fact that the United States has one of the highest child obesity rate in the world frustrates me. We need to do more to educate ourselves and our children about the dangers of overeating and the poison that we put into our bodies. We need to demand more from our food industry. However I should have known better in how I expressed myself; and with my new responsibility to others as a public figure I will strive to be better. As for why I cannot be at the MLB show, I have had emergency oral surgery and due to recovery I cannot attend the show. I hope to make it up to all those fans soon. That being said let me once again apologize if I have offended anyone with my poor choice of words."

The Problem singer's actions have reportedly shocked her ex-boyfriend and rapper Big Sean, who reportedly found her behaviour "disappointing".

Several people have expressed their disgust while some advised her to act her age, after watching the video.