Why. Just why.

Mark Mahlberg can jog on with his 4am work outs to be honest.

The star recently revealed he wakes up at 2.30am (yes that's right AM), has an aul pray and then heads to his home gym to work out.

After seeing Mark Wahlberg's daily schedule, James Corden decided to join him for the day and headed to Mark's house to see what living his best-workout life would be like.

At 4am the only workout you should be doing is trying to navigate down the Copper Face Jacks stairs without falling.