Anthony Joshua appeared in high spirits when he gave a boxing lesson during a TV appearance

Joshua was on The Graham Norton show, alongside actors and comedians on Friday evening

Joshua showed the stars how it was done when he stepped up to punch the bag himself

Joshua too stripped off his waistcoat for more mobility, as he taught his fellow celebrities how to stand for their one punch on the machine.

After Weisz had recorded 182, Freeman 594 and Davies 632 – plus a cameo 417 for Norton himself – AJ stepped up to smash the high score on the machine.

Clearly not at full power, the Watford-born boxer hit an 848 with his sole attempt, showing a glimmer of the skills which helped him beat Wladimir Klitschko in April.

Joshua now holds the IBF, WBA and IBO world heavyweight titles with a 19-0 record after his huge victory at Wembley Stadium.

AJ watches the number rise as he heads towards the previous record of 787 (pictured right)

Joshua eventually ended on 848 – smashing the record without his full power behind punch

Before his go, AJ gave tips to Greg Davies, Martin Freeman and actress Rachel Weisz (L-R)

The Brit now wants to fight Joseph Parker or Deontay Wilder, but Eddie Hearn admits he wants to take his time with the talented 27-year-old.

He told Sky Sports: ‘The plan with Anthony Joshua is not two or three fights, it’s eight to 10 years.

‘We’ve got to go through everybody. We’re urging all the heavyweights to keep going, to call him out.’