Trainwreck actress and Charlie Sheen’s ex Denise Richards has sworn never to sing again in public after mentally scaring fans at a Chicago Cubs game last weekend.

According to reports, Richards thought singing would be “great fun” and didn’t expect the criticism. She attempts to defend herself by saying it was for a good cause, but we’re not sure how you could find anything good about the performance.

In case you missed our earlier post, here’s the video again. The only unfortunate thing is that she also didn’t vow to give up acting as well.