Watch: John Stamos Shares Hilarious Way Son Billy, 7, Name-Drops Him to Impress GirlsEverywhere you look, there's John Stamos serving a new look. Indeed, the Full House actor elevated his signature brown hair with blonde highlights, and this transformation would make Uncle Jesse-and his shiny, bodacious mullet-do a double take. In his Jan. 13 Instagram video, the 62-year-old shared a close look at his makeover. Explaining that he's learning to "trust the process," his longtime hairstylist Riawna Capri lightened the front section of his hair with aluminum foil. She then dyed the rest of John's strands, which used to be a dark chocolate brown with a sliver of gray, black and tossed a few waves in his hair for more volume. This isn't the first time the ER alum-who shares son Billy, 7, with wife Caitlin Stamos-has experimented with his hair. Last July, he posted a TikTok video of him cutting his own hair since Riawna was out of town. However, he didn't complete the mission alone, as he called the hairdresser on Facetime to guide him through the process.photosJohn Stamos and Caitlin McHugh: Romance RewindAnd when John's not brushing up on his own grooming techniques, he's helping a friend complete his own emotional transformation. Indeed, he shaved his Full House costar Dave Coulier's head during his battle with stage 3 Non-Hodgkin's lymphoma in November 2024. "Nothing like throwing on a bald cap and flexing some Photoshop skills to show some love and solidarity with my bro @dcoulier," he wrote on his Instagram post that month, including a shot of him sporting a bald cap to match Dave's then-new look. "You're handling this with so much strength and positivity-it's inspiring." John added, "I know you're going to get through this, and I'm proud to stand with you every step of the way. I love you." View this post on Instagram Dave, 66, announced he was cancer-free last March, but he endured another tough chapter when he was diagnosed with HPV-related oropharyngeal tongue cancer seven months later. And as he continues to share insight into his health journey, the Fuller House star is cherishing his bond with John. In fact, Dave wrote his close friend a heartwarming letter when he appeared on the Today show last month. "I recognize this writing," John said in the Instagram video at the time. "It says, 'Dear John, I love you and I hope I get to see you soon. We need to laugh and be really immature together. Love you, love you, love you. Your brother, Dave.' I love this guy. I'm so proud of him. He's doing so great and he's such an inspiration to everybody." John isn't the only celebrity that has switched up his hair over the last year. Keep reading to see more makeovers... Sami Sheen/InstagramSami SheenThe daughter of Charlie Sheen and Denise Richards shared her at-home hair dying journey, including its many missteps, on TikTok and raved about the results. "I've been wanting to do this to my hair for years now," she said, "and I'm so happy that I finally did it."Raymond Hall/GC Images; Instagram/Carrie UnderwoodCarrie UnderwoodTrading in her signature golden locks, the country music star wrote on Instagram in August 2025, "Well, the last time I saw my natural hair color, I was probably about 12 years old, but I thought it might be time to give it a second chance."Shane Anthony Sinclair/Getty Images; Instagram/Jason MomoaJason MomoaIn July 2025, the actor shaved off his beard for the first time in six years to film Dune: Part Three, which required him to rock a clean shaven look to reprise his role of Duncan Idaho.
Denise Truscello/Getty Images for Live Nation Las Vegas/Instagram/NBCKelly ClarksonThe American Idol winner debuted a shorter hairdo in a July 2025 The Voice promo, trading her signature blonde waves for a shorter, darker bob style.
Instagram / Chris Pratt / Matt Baron/BEIChris PrattThe actor debuted a bearded look, which he sports on season two of The Terminal List, in June 2025.
John Nacion/Variety via Getty Images; Jun Sato/WireImageFinn WolfhardThe Stranger Things star changed up his trademark shaggy hairstyle in May 2025 by debuting a buzzcut at the 2025 Crunchyroll Anime Awards in Tokyo, Japan.
Jamie McCarthy/WireImage; Matt Baron/BEI/ShutterstockSebastian StanThe Marvel actor said goodbye to Bucky Barnes' signature long hair in April 2025, showing off a shaved head at the Los Angeles premiere of Thunderbolts*.
Jon Kopaloff/Getty Images; Steve Granitz/FilmMagicJoJo SiwaIn March 2025, the "Karma" singer debuted her rainbow mohawk at the GLAAD Media Awards. Instagram; TikTokEmily RatajkowskiIn a March 2025 TikTok video, the model called this 'do with shaggy bangs the "worst haircut of my life."Instagram / Gypsy Rose BlanchardGypsy Rose BlanchardThe Gypsy Rose: Life After Lockup star debuted a short bob in March 2025, more than two months after giving birth to her and fiancé Ken Urker's first child, daughter Aurora Urker.
Clifton Prescod/Bravo/Charles SykesWhitney RoseThe formerly blond Real Housewives of Salt La