1 / 7

Justin Bieber

When bad boy Justin posted this photo of his mother’s right eye on his left arm, he included the caption, “Moms always watching ;).” Bieber reportedly got this tattoo after his mother, Pattie Mallette, discussed her 19-year-old son’s recent wild behavior on Andy Cohen’s “Watch What Happens Live.” Well, we hope the eye can blink because this guy is out of control, relieving himself in a restaurant’s mop bucket and boozing are moments the average mom would rather not see. — BJJr

Worst Rock Star Tattoos

We're probably the most tattooed generation ever. More than 40 million people in America have at least one tattoo. Musicians rarely stop at one. That's too bad, because a whole bunch of those guys are eventually going to look really dumb playing bingo with their fellow senior citizens. The only thing worse than an old rocker is an old, tattooed rocker. Here's a cautionary list of musicians who've made the biggest tattoo mistakes. Keep these photos with you when you're drunk some Saturday night and headed for the studio to get inked. —Shawn Amos