Amanda Bynes was spotted celebrating her pal’s birthday following the allegations made about Nickelodeon execs in the Quiet on the Set: The Dark Side of Kid’s TV docuseries. The Amanda Show alum was recently seen entering the Chateau Marmont in L.A. while wearing a light gray tank top and black leggings with white sneakers. The star, 38, additionally held a “Happy Birthday” gift bag as she entered the venue sporting her long blonde extensions. As OK! previously reported, the actress — who has been vocal about pivoting her career in Hollywood to become a manicurist — attended the bash months af…
