Fans Crossing the Line

The news in the world of "Glee" is that during a recent live performance in the TV show's national tour, an overly enthusiastic fan pulled one of the performers off the stage. It was almost a repeat of an incident a couple of weeks ago, during Rihanna's "Today Show" appearance, where a fan hugged her during the performance and wouldn't let go. These moments are clear breaches of etiquette; there are fairly strict rules today that separate music performers and audiences at concerts, from the presumed "fourth wall" of the stage to the security personnel that are sometimes hired to police it. Nevertheless, such breaches happen quite frequently.

Last month, it happened to U2 in Mexico City. It also happened to Shakira:

Recently, Lady Gaga encountered a fan gesturing along with a song on stage in Japan:

Brittany Spears had something similar happen the year before: