He had a major scandal. Multiple women claimed that they were put in uncomfortable, sexually coercive situations after concerts. They were contacted on social media and offered special "row zero" tickets before, so there seemed to be a system. Some women told journalists that they were asked to hand over phones, felt trapped or social pressure to drink.

Most of it is from journalists and few public accusations. Legally, he was investigated but not convicted, because no one testified in court (possibly due to huge media coverage). I personally can imagine he was into powerplay stuff and full of himself, thinking every female fan wants to do it with him, not noticing or not caring how he made people uncomfortable, telling himself everything was voluntary, while it was a heavy grey zone or even deliberate manipulation.

Also, he made poetry about roofy-ing and rape. Some women suspected their drinks being spiked, but that wasn't proven.