Rob Lowe celebrated his 60th birthday with a star-studded soirée in Santa Barbara on Saturday while clad in a sleek black pinstripe suit. 

The Floor producer-host – who technically hit the milestone on March 17 – hired a live band featuring Grammy-winning jazz saxophonist Kenny G to entertain the crowd until 1:30am. 

‘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 earlier this month.

‘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.’

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

Rob Lowe celebrated his 60th birthday with a star-studded soirée in Santa Barbara on Saturday while clad in a sleek black pinstripe suit

The Floor producer-host – who technically hit the milestone on March 17 – hired a live band featuring Grammy-winning jazz saxophonist Kenny G to entertain the crowd until 1:30am 

The 47-year-old Red Right Hand action star – who popped the question to the 39-year-old pop star in 2019 – was dressed down in a black jacket over a matching sweater, grey slacks, and Doc Marten-style boots. 

Newly-minted Oscar winner Robert Downey Jr. arrived wearing sunglasses and an all-grey suit.

The 58-year-old Oppenheimer actor was joined, as always, by his second wife and producing partner, Susan Levin Downey. 

Four-time Golden Globe nominee Cameron Diaz – who’s in the midst of a Hollywood comeback – clutched a branch of flowers alongside her husband Benji Madden, with whom she just welcomed her second child (son Cardinal) via surrogate.

The 51-year-old Avaline co-founder was wearing a black duster over a matching top and blue jeans as she partied with 33-time Daytime Emmy winner Ellen DeGeneres and her wife Portia de Rossi.

The 66-year-old ex-talk show host beamed as she bid Cameron farewell.

Ellen and the Australian 51-year-old – who’ve been married 15 years – coordinated in a black pantsuit and a plunging black gown.

The Literally podcaster’s youngest son John Owen Lowe Instastoried a snap of the large sign greeting guests at the bash reading: ‘No posting of any photos on any social media.’

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

The 47-year-old Red Right Hand action star – who popped the question to the 39-year-old pop star in 2019 – was dressed down in a black jacket over a matching sweater, grey slacks, and Doc Marten-style boots

Newly-minted Oscar winner Robert Downey Jr. arrived wearing sunglasses and an all-grey suit

The 58-year-old Oppenheimer actor was joined, as always, by his second wife and producing partner, Susan Levin Downey

Four-time Golden Globe nominee Cameron Diaz – who’s in the midst of a Hollywood comeback – clutched a branch of flowers alongside her husband Benji Madden, with whom she just welcomed her second child (son Cardinal) via surrogate

The 51-year-old Avaline co-founder (L) was wearing a black duster over a matching top and blue jeans as she partied with 33-time Daytime Emmy winner Ellen DeGeneres (R) and her wife Portia de Rossi (M)

The 66-year-old ex-talk show host beamed as she bid Cameron farewell

Ellen and the Australian 51-year-old – who’ve been married 15 years – coordinated in a black pantsuit and a plunging black gown

Rob’s youngest son John Owen Lowe Instastoried a snap of the large sign greeting guests at the bash reading: ‘No posting of any photos on any social media’

The 28-year-old Unstable creator-star wore an all-black suit as he chatted with two lovely ladies

Oscar winner Gwyneth Paltrow was spotted beside a bundle of balloons alongside her second husband Brad Falchuck

The 51-year-old Goop founder (L) bundled up in a faux fur coat over a black pantsuit and blue ankle-strap slingbacks while the 53-year-old 9-1-1: Lone Star creator (R) wore a pastel yellow suit and brown Oxfords

Three-time Grammy winner Adam Levine (L) and his wife Behati Prinsloo (M) were spotted attending the festivities ahead of their 10th wedding anniversary on July 19

The Namibian 35-year-old – who’s welcomed three children – dressed her slim 5ft11in figure in a grey-plaid corset top with a brown leather mid-skirt and spike-heeled black boots

The 45-year-old Maroon 5 frontman (L) showcased his full-body tattoos in formal shorts, a matching silky top, blazer, and creepers

Adam and Behati joined the gathering tight crowd at the valet, including a delighted-looking DeGeneres (M)

Also waiting for their luxury car was Netflix co-CEO Ted Sarandos and his second wife Nicole Avant wearing a striking green-silk caped gown

The 28-year-old Unstable creator-star wore an all-black suit as he chatted with two lovely ladies. 

Oscar winner Gwyneth Paltrow was spotted beside a bundle of balloons alongside her second husband Brad Falchuck. 

The 51-year-old Goop founder bundled up in a faux fur coat over a black pantsuit and blue ankle-strap slingbacks while the 53-year-old 9-1-1: Lone Star creator wore a pastel yellow suit and brown Oxfords. 

Three-time Grammy winner Adam Levine and his wife Behati Prinsloo were spotted attending the festivities ahead of their 10th wedding anniversary on July 19.

The Namibian 35-year-old – who’s welcomed three children – dressed her slim 5ft11in figure in a grey-plaid corset top with a brown leather mid-skirt and spike-heeled black boots.

The 45-year-old Maroon 5 frontman showcased his full-body tattoos in formal shorts, a matching silky top, blazer, and creepers.

Adam and Behati joined the gathering tight crowd at the valet, including a delighted-looking DeGeneres.

Also waiting for their luxury car was Netflix co-CEO Ted Sarandos and his second wife Nicole Avant wearing a striking green-silk caped gown.