Not all of us are particularly proud of our school days. The adolescent fits, the teenage squabbling, the countless nightmares that come from passing through your 'awkward' phase as you gradually enter adulthood.
Well most of us have grown out of that now, but not everyone. Some rockstars are still absolute douchebags. But not everyone. To get to know the personality of some of music's biggest stars, Reddit invited teachers to share tales of what celebrities were like when they taught them in their youth.
We've gathered some of the best about the likes of Kurt Cobain, Kanye West, Justin Bieber and beyond - find out who was 'a very nice, respectful and smart young man', and who was 'an entitled little shit'. The answers may, or may not, surprise you.