The Greek Theatre, a major concert venue in the Griffith Park area of Los Angeles, was evacuated Sunday night. Yousef Erakat, better known as fouseyTUBE, was performing when his show was moved outside to the venue’s parking lot. A bomb threat forced about 1,500 people to leave the venue. A call to police indicated an explosive device was placed at the venue, but an investigation did not discover any such package. The threat forced the cancellation of the show by…