Ariana Grande sincerely sorry for doughnut blunder

Ariana Grande has issued a second, "sincere" apology for her infamous doughnut incident.

Earlier this week a video emerged that showed the singer, her new boyfriend Ricky Alvarez and some friends in a bakery. Ariana was caught on tape licking some of the produce out on the counter and proceeded to slam a tray of baked goods brought out by a shop assistant, branding them "disgusting" and the reason she "hates America".

The 22-year-old issued a statement to Us Weekly afterwards, clarifying she loves the US and is merely an "advocate of healthy eating". However, she's now decided further remorse is needed.

"I'm making this video from wisdom tooth recovery hell. I just want to make a video to apologise again for the whole doughnut fiasco and craziness because I feel like the apology I posted, I kind of missed my opportunity to actually sincerely apologise and express how I was feeling because I was too busy preaching about my feelings with the food industry, which is not relative," she says in a clip posted on YouTube.

It seems the footage, which inadvertently outed Ariana's relationship with dancer Ricky, has proved a real shock to the star. Trying to prove how sorry she is, she detailed how mortified she was when she first saw it.

"Seeing a video of yourself behaving poorly that you had no idea was taken is such a rude awakening. I was so disgusted with myself," she continues.

"I shoved my face in a pillow and wanted to disappear, but instead of that I'm going to come forward, own up to what I did, take responsibility, and say I'm sorry... I reacted in a way that wasn't necessary to say the least and also wasn't me at all. I apologise for my poor choice of words and my behaviour. Seeing how ugly it looks when you behave a certain way makes you never want to behave that way again."

Yesterday it emerged the incident is being investigated by public health officials but no crime was committed by Ariana, so she likely won't come under investigation.