Adele – Gum Chewing

Here we have another Grammy winner who has a bad habit. What’s up with singers that are seemingly perfect? Adele’s quirky habit is chewing gum, which is comparably milder than the others on this list but still should be moderated.

The “Easy On Me” hitmaker was even called out for this habit at the 2012 Grammy Awards when she was accepting her golden gramophone onstage! Avid fans of Adele are probably familiar with this because she had done this multiple times in front of big crowds as well. Although it helps keep bad breath away, this could lead to jaw pain.