MUMBAI: Ariana Grande has apologised for her behaviour in a donut shop's security footage where she licked multiple unpurchased donuts and said, "I hate Americans. I hate America".

The 22-year-old pop singer apologised by posting a four-minute video on video-sharing site YouTube on Thursday evening, reports hollywoodreporter.com.

With puffy cheeks from her wisdom teeth removal, Grande said she wanted to post it in response to the "whole donut fiasco and craziness because I feel like the apology that 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 issues with the food industry, which is not, I feel like, relative. I feel like I could have expressed myself in a different way."

The ‘Problems’ singer continued, "Now is my chance before the whole thing blows over to say sorry and that actually I've never been prouder to be an American, to be honest with you. Advances that we've made in the past couple months and all the wonderful, progressive things that have been going on, I've never been prouder of this country, actually."

Grande explained that seeing herself on video was eye-opening.

"Seeing a video of yourself behaving poorly, that you have no idea was taken, is such a rude awakening. It's like you don't know what to do. I was so disgusted with myself. I shoved my face in a pillow and wanted to disappear,” she said.