Rob Lowe, 60, shows off his incredible physique as he goes shirtless for Fourth of July celebrations with his sons in Santa Barbara

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Rob Lowe showed off his incredible physique as he celebrated Independence Day at a beach party in Santa Barbara, California on Thursday. 

The American actor, 60, went shirtless as he was seen jumping off a boat as he marked the Fourth of July celebrations. 

The West Wing star opted for some blue and white patterned swimming shorts while he also wore a silver chain around his neck.  

Rob was joined by his two sons Matt, 31, and John, 29, as the two enjoyed some quality father son time together. 

The pair later went fishing as they were joined by a group of friends on Matt's boat, The Bigger Jigger. 

Rob Lowe, 60, showed off his incredible physique as he went topless for Fourth of July celebrations with his sons in Santa Barbara, California on Thursday

Rob Lowe, 60, showed off his incredible physique as he went topless for Fourth of July celebrations with his sons in Santa Barbara, California on Thursday 

The actor was caught mid jump as he was momentarily airborne before hitting the water

The actor was caught mid jump as he was momentarily airborne before hitting the water 

Getting into the festive spirit, John was also seen shirtless as he wore an American flag headband while fishing with his bucket. 

Beaming from ear to ear, Rob later covered up in a pale blue shirt as he relaxed in the boat with his pals.  

Rob shares his two sons with his makeup artist wife Sheryl Berkoff who he tied the knot with in 1991. 

The star joined a host of celebrities celebrating Independence Day as Mark Wahlberg, Reese Witherspoon and Katy Perry also marked the day.  

Mark was seen with his family in a group photo as he wrote in his caption: 'Wishing my fellow Americans a happy and safe 4th of July!! ❤️.'

Reese Witherspoon looked sensational as she celebrated Independence Day with a game of pickleball with her niece Draper. 

The Legally Blonde star, 48, flashed her toned abs as she posed up a storm in a black and white checked tennis co-ord. 

Meanwhile Katy Perry showcased her jaw-dropping figure in a patriotic bikini, featuring the American flag bikini across her chest, while celebrating Independence Day.

The 39-year-old superstar started the Fourth of July off with a bang as she shared a sizzling snap of herself in a patriotic top, covered in rhinestones, and a red banana with white polka dots.

The West Wing star opted for some blue and white patterned swimming shorts while he also wore a silver chain around his neck

The West Wing star opted for some blue and white patterned swimming shorts while he also wore a silver chain around his neck

Rob grabbed his towel after jumping in for a dip

Rob grabbed his towel after jumping in for a dip 

Beaming from ear to ear, Rob later covered up in a pale blue shirt as he dipped his toes in the water
Rob looked in great spirits as he enjoyed some quality time with his sons

Beaming from ear to ear, Rob later covered up in a pale blue shirt as he dipped his toes in the water 

A great action shot caught Rob launching himself off the boat

A great action shot caught Rob launching himself off the boat 

The star was joined by pals as he relaxed on Matt's fishing boat

The star was joined by pals as he relaxed on Matt's fishing boat 

Rob joined a host of other celebrities, including Reese Witherspoon and Katy Perry, who marked the celebrations

Rob joined a host of other celebrities, including Reese Witherspoon and Katy Perry, who marked the celebrations 

Getting into the festive spirit, John was also seen shirtless as he wore an American flag headband while fishing with his bucket

Getting into the festive spirit, John was also seen shirtless as he wore an American flag headband while fishing with his bucket

Independence Day - known colloquially as the Fourth of July - is commonly associated with fireworks, parades, barbecues, carnivals, fairs, picnics, concerts, baseball games, family reunions, political speeches, and ceremonies.

But it was founded for a political move. 

Independence Day is a federal holiday in the United States commemorating the Declaration of Independence.

It was ratified by the Second Continental Congress on July 4, 1776, establishing the United States of America.

The Founding Father delegates of the Second Continental Congress declared that the Thirteen Colonies were no longer subject (and subordinate) to the monarch of Britain, King George III.

They were now united, free, and independent states.

The Congress voted to approve independence by passing the Lee Resolution on July 2 and adopted the Declaration of Independence two days later, on July 4.

Earlier this year Rob celebrated his 60th birthday with a star-studded soirée in Santa Barbara while clad in a sleek black pinstripe suit.

The Floor producer-host - who hit the milestone on March 17 - hired a live band to entertain the crowd until 1:30am.

An action shot of Rob splashing into the water

An action shot of Rob splashing into the water 

Rob edged to the side of the boar before making his jump
His upper arm tattoo was also on display

Rob edged to the side of the boar before making his jump 

Rob swam back to the boat after his almighty jump

Rob swam back to the boat after his almighty jump 

He climbed back onto the boat

He climbed back onto the boat 

He was seen hauling himself out of the water

He was seen hauling himself out of the water 

The boat had been decorated with an American flag

The boat had been decorated with an American flag 

Rob celebrated his 60th birthday in March of this year

Rob celebrated his 60th birthday in March of this year 

John looked to be getting in the spirit of the Independence Day festivities with his headband

John looked to be getting in the spirit of the Independence Day festivities with his headband 

Rob's son John is an writer, actor and producer. He stars with his dad in the Netflix comedy series Unstable

Rob's son John is an writer, actor and producer. He stars with his dad in the Netflix comedy series Unstable

John opted for some simple black swimming shorts

John opted for some simple black swimming shorts 

The boat is called The Bigger Rigger

The boat is called The Bigger Rigger 

Talking about turning 60 he told People in March: 'I love the milestone birthdays, because it really is an opportunity to reflect and to think about where you want to go'

Talking about turning 60 he told People in March: 'I love the milestone birthdays, because it really is an opportunity to reflect and to think about where you want to go'

The group looked to be having a lovely day

The group looked to be having a lovely day 

'I love the milestone birthdays, because it really is an opportunity to reflect and to think about where you want to go,' Rob told People in March. 

'I'm so humbled and grateful that I have never had more things that are interesting to me going on in my life. Never felt better. My relationships and every level, I'm in the pocket and this is exactly the way I want to go into my next decade.'

Rob invited family and A-list friends such as American Idol judge Katy Perry and her fiancé Orlando Bloom.

Cameron Diaz and his pal Robert Downey Jr. were also present at the big bash.