Following in David's footsteps! Brooklyn Beckham, 17, shows off his muscles in shirtless snap as he hits the gym 

He's spending the summer in America with his famous family in tow.

And now that his photography course in New York City has come to an end, Brooklyn Beckham has been making up for lost time by hitting the gym hard and working on his fitness regime.

The 17-year-old star showed off the results of his endeavors on his Instagram account, revealing his impressive muscle definition in a shirtless selfie.

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Fitness fan: Brooklyn Beckham has been hitting the gym hard and working on his fitness regime, sharing a shirtless workout snap on Instagram on Tuesday

Fitness fan: Brooklyn Beckham has been hitting the gym hard and working on his fitness regime, sharing a shirtless workout snap on Instagram on Tuesday

Brooklyn can be seen in the weights room at the gym, posing in a pair of workout shorts.

The arty black and white snap went down a storm with the teen's followers, who were impressed with his upper body strength.

The youngster certainly seems to be following in his father David Beckham's footsteps, joining his dad at the gym for regular SoulCyle sessions.

Social media sensation: The arty black and white snap went down a storm with the teen's followers, who were impressed with his upper body strength

Social media sensation: The arty black and white snap went down a storm with the teen's followers, who were impressed with his upper body strength

The sporty star is also regularly seen on his skateboard and on hikes with his parents, so it's no surprise he looks the picture of health.

His mother, Victoria Beckham, realised just how fast her eldest child was growing up as she shared a snap of her strapping son earlier in the day.

Towering over her, Brooklyn proved he was taking after David in the height stakes as she joked about how tiny she looked in comparison. 

Two of a kind: Victoria Beckham, 42, realised just how fast her eldest son was growing up as she shared a snap of herself dwarfed by Brooklyn, 17, earlier in the day 

Two of a kind: Victoria Beckham, 42, realised just how fast her eldest son was growing up as she shared a snap of herself dwarfed by Brooklyn, 17, earlier in the day 

Cuddled up together in a sweet black and white snap, the designer quipped: 'I had no idea I was so short X Special family time X Kisses @brooklynbeckham @davidbeckham X VB.' 

Cuddled up together, 5′ 4″ Victoria looked effortlessly chic in a loose fitting vest and denim hotpants, donning a trucker cap and signature oversized shades as she pouted for the camera. 

Meanwhile, Brooklyn looked the spitting image of his footballer father as he showed off his gym-honed arms in a vest and tracksuit bottoms. 

On level footing! Victoria - famed for her love of heels - can almost reach her eldest son's height when she dons a pair of trusty stilettos

On level footing! Victoria - famed for her love of heels - can almost reach her eldest son's height when she dons a pair of trusty stilettos

Whilst Brooklyn undoubtedly takes after his dad, David revealed that his youngest son Cruz is rather similar to his popstar mother.

Posting a clip of the 11-year-old showing off his dancing skills on Monday, the third child of the couple's four seemed to have picked up a thing or two from Spice Girl Victoria. 

Proud David, utilising his knowledge of football nicknames, captioned the video: 'Come on Cruzie.' 

Wannabe dancer: David's son Cruz showed off his moves in an Instagram video on Monday

Wannabe dancer: David's son Cruz showed off his moves in an Instagram video on Monday

No doubt Victoria got a lump in her throat when she saw her boy showcasing his unique dance floor capabilities.

The youngster, who was wearing trendy sportswear and a baseball cap, showcased his best moves, with perhaps the most notable stylistic flourish being his use of an invisible stick in his right hand, which he waved it around with wild abandon.

Of course Cruz should be expected to be something of a natural on the dance floor, given he is a descendant of British pop royalty. 

More moves than you can shake a stick at: His most audacious stylistic flourish was his judicious use of an invisible branch, which he waved around with aplomb

More moves than you can shake a stick at: His most audacious stylistic flourish was his judicious use of an invisible branch, which he waved around with aplomb

Monday night diva: He proved to be something of a natural when it comes to zany dance steps

Monday night diva: He proved to be something of a natural when it comes to zany dance steps

Stop If U Can't Dance: But Cruz seemed to be having a great time as he continued his routine

Stop If U Can't Dance: But Cruz seemed to be having a great time as he continued his routine

Victoria shot to worldwide fame in 1996 as a member of record-breaking group the Spice Girls.

Nicknamed Posh Spice, supposedly due to her 'refined attitude' and love of designer clothing, she achieved a string of number ones with the band, though she primarily served as a backing singer.

The Spice Girls have sold more than 80 million records around the globe, making them the best-selling female group of all time and one of the best-selling bands of all time 

Spicing up David's life: The former footballer was no doubt lapping up the action

Spicing up David's life: The former footballer was no doubt lapping up the action

Old Spice: Victoria with the girls during The Return Of Spice Girls Word Tour in 2007

Old Spice: Victoria with the girls during The Return Of Spice Girls Word Tour in 2007

The spice boys: Victoria posing with husband David and sons Brooklyn, Cruz and Romeo. The couple also have a five-year-old daughter named Harper Seven 

The spice boys: Victoria posing with husband David and sons Brooklyn, Cruz and Romeo. The couple also have a five-year-old daughter named Harper Seven 

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