The man accused of peeing all over a family at a Morgan Wallen concert has been arrested ... and he's now facing multiple criminal charges ... TMZ has learned. Maryland Transportation Authority Police ...

“My wife was getting peed all over, [and] my 8-year-old niece was getting peed on,” he tells PEOPLE Jason Kempin/Getty Troy Grevelding claims a man urinated on his family during a Morgan Wallen ...

The singer makes a celeb guest appearance with Elmo and the gang in the upcoming special, "Storm on Sesame Treat," performing a twist on his hit song with Morgan Wallen. While the neighborhood stocks ...