Mark Wahlberg Gives Advice to Justin Bieber!

Mark Wahlberg shows off his huge guns after making an appearance on Daybreak at the ITV Studios on Tuesday (August 6) in London, England.

The 42-year-old actor was seen posing for pics and signing autographs for fans, who had waited outside, after promoting his new film 2 Guns.

PHOTOS: Check out the latest pics of Mark Wahlberg

Mark recently gave some advice to Justin Bieber.

“Justin, are you listening? Don’t be so naughty, yeah?” Mark joked to The Sun UK. “Be a nice boy, pull your trousers up, make your mum proud, yeah? Stop smoking all that weed, you little bastard.”

He added, “He’s a teenager living in a different day and age. I was in prison before I got a record out and I don’t think he’s been to prison. He’s a nice enough kid and you’re going to be a teenager.”

15+ pictures inside of Mark Wahlberg promoting 2 Guns…