Don't mess with Justin Bieber...
Rob Lowe may have angered thousands of Justin Bieber fans earlier in the week, but the Love Life author didn't seem to show any sign of regret as he made his way to the David Letterman show.
The actor looked happy and relaxed in a loose grey jumper and black jeans, and spent time posing for photographers and waving at fans.
Rob didn't show any signs of regret (Splash News)
The 50-year-old couldn't stop smiling as he made his way into the studio, despite the fact that he's in the centre of a social media storm with angry beliebers.
Rob had a constant smile on his face (Splash News)
Rob caused controversy when he spoke to Oprah Winfrey earlier this week, saying: "He makes really good music, he does, but I think he knows the dark secret, and the dark secret is 80 percent of his audience doesn't give a s--t about the music. And he knows it. It bums him out.
"They care about lemming-think, and their girlfriends and who's oohing and aahing and screaming. It has nothing to do with what he's doing as an artist."
Rob waved at his fans (Splash News)
But it seems Justin's fans disagreed with the statement with many of them taking to Twitter and online forums to voice their anger.
