Ryan Reynolds Says He Just Learned Blake Lively's Real Last Name

She's not as lively as you might think. 

Ryan Reynolds sweetly trolled wife Blake Lively after the Gossip Girl actress unveiled her new beauty brand Blake Brown Beauty on July 31, quipping on his Instagram Story that he "just found out her last name is Brown." 

In fact, the hair care company is named after Blake's father, Ernie Lively, who was born Ernest Brown but changed his last name after marrying her mom Elaine Lively in 1979. 

But no matter what Blake goes by, Ryan is marvelously proud of his Lady Deadpool—with whom he shares kids James, 9, Inez, 7, Betty, 4, and Olin, born in 2023—for working on the hair care company for the past seven years.

"I'm obscenely proud of this woman," the Deadpool & Wolverine star wrote. "The result is exactly what you'd expect of a hyper-obsessive, detail addicted, uncompromisingly quality control genius." 

Blake, 36, admitted that her dedication to her "newest baby" Blake Brown Beauty "toggles between impressive and wtf took so long" as she worked meticulously—even "obsessively"—on developing the products, which launch in Target Aug. 4.

“Ever since I was a kid, through adolescence, early adulthood, motherhood, work, personal life, whenever, wherever, the single most identifiable part about me has always been my personalit— no? Not my personality? Oh… My hair,” Blake wrote in a July 31 Instagram post. “It’s my longest companion in life."

And as she put it, “Like any relationship, it’s healthiest when you take good care of each other.”

So, Blake created shampoos, hair masks, a dry shampoo and a mousse for the launch, with the goal of offering "red carpet performance" at an affordable price point.

"It was a beast to build," the A Simple Favor star continued. "But I couldn’t be prouder of what we created for you.”

Blake isn’t the only celeb to reveal her family's surprising surname. Read on for more celebrities who have come clean about their real names, too.

Though the singer initially released a Christian album under her birth name in 2001, she felt the stage name Katy Perry—inspired by her mom's maiden name—might meet pop fans more in awe, awe, awe. 

Cardi B took on the name Bacardi after family and friends started calling her sister Hennessy. Later on she shortened the name to something that suited her quite a bit more.

Before she became the Duchess of Sussex, Meghan Markle was briefly known as Rachel. 

Shania Twain shared the origin story of her stage name during an appearance on Apple Music's Home Now Radio: "In short, I was born, Eilleen Regina Edwards, and then I was adopted and I became Eilleen Regina Twain. Then I became a professional singer and I needed a stage name that sounded a little less like my grandmother's name, because I'm named after my grandmother, both my grandmothers, Eilleen and Regina. I think, in my mind, I was just not really wanting to be called my grandmother's name onstage, so I decided to change it to Shania Twain. I met somebody with the name Shania, thought it was beautiful, and Shania Twain was born."

Oddly enough, Gigi Hadid got her stage name in school when the teacher would confuse her and a girl named Helena. Since her mom called her "gigi" as a term of endearment at home, she told the teacher to just call her Gigi and it simply stuck. 

If you're looking for an explosive action-star name, how about Vin Diesel instead?

Miley Cyrus' bright smile is what inspired her childhood nickname, Smiley. Eventually the name was shortened to Miley and it stuck. 

Apparently the singer looked more like a Bruno than a Peter, so one day his dad started calling him Bruno. Ever since, he has been known as Bruno Mars.

Before the meat dresses and chart-topping music, Lady Gaga was just an everyday girl from New York.

Jason Sudeikis confirmed on Today that he was named Daniel after his father, but following some confusion, his mom started using his middle name Jason to avoid confusion. 

Emma Stone ended adopting this stage name after finding out that the Screen Actors Guild already had a member registered under her birthname. 

Turns out Reese isn't even Reese Witherspoon's middle name. The actress chose the moniker in honor of her mother, whose maiden name is Reese.

Every artist has an alter ego, and Lana Del Rey just happens to be the persona of choice for the singer. 

In 2014, Frank Ocean legally changed his name because, why not? 

A little known fact about 30 Rock's Tina Fey is that she is actually named Elizabeth. The comedian made a not so subtle tribute to her birth name by naming her character Liz Lemon.

This pioneer of West Coast rap would later go on to be known as Snoop Dogg.

Turns out the "Royals" singer is really into learning about the aristocracy, hence the reason why she chose the name Lorde, but with a feminine 'e.'

Before he started shaking his bonbon for the masses, music superstar Ricky Martin went by this everyday name.

It's hard to believe that Iggy Azalea was born Amethyst Kelly!

Fans were confused when Taylor Swift thanked then-boyfriend Adam in an acceptance speech, which lead people to the discovery that Calvin Harris is simply a stage name. The DJ told Shortlist magazine he chose the name because his first single was more soulful and wanted something a bit more "racially ambiguous."

Before she became a household name, this was what erstwhile Friend Jennifer Aniston answered to.

Alicia Keys didn't always have such a musical name.

Before he became arguably the biggest movie star in the world, Tom Cruise went by this name.

Back when she was born in 1980, this was how the future bigtime actress Natalie Portman greeted the world.

Before she became a big-time TV star and married Ellen DeGeneres, this was the name Portia de Rossi answered to.

Guess music superstar Elton John didn't think his original name would be a hit with audiences.

Check The Simple Life alum Nicole Richie's birth certificate and this is the name you'll see.

All it took was a nickname from some high school friends, and U2 frontman Bono's famous moniker was born.

We agree. Carmen Electra is much more effective when it comes to selling a sexy Baywatch persona.

"I went on as Eric Bishop, killed, standing ovation," Jamie Foxx has said of his early comedy days, revealing that for weeks after his fellow comedians blocked him from getting back onstage. So he took his act to a new location and wrote down three unisex-sounding names in the hopes of getting picked. "I go up and get a standing ovation, so the name sticks." 

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