AceShowbiz - Olivia Munn showed support for John Mulaney at the star-studded opening night of John's new Broadway play, "All In", in New York City. The power couple, who recently celebrated their son Malcolm's third birthday, arrived at the Hudson Theatre in style.

The 44-year-old actress wowed the crowd in a stunning brown halterneck dress with a deep keyhole design, John sported a sophisticated double-breasted light gray suit paired with a cream-colored shirt. Their joyous red carpet appearance was a testament to their combined charm and elegance.

"All In", described as "a series of hilarious short stories about dating, heartbreak, marriage and that sort of thing," features John Mulaney leading a rotating cast of comedians until January 12. The likes of Lin-Manuel Miranda are set to take over thereafter, ensuring a dynamic and ever-evolving comedic experience for attendees.

Olivia's appearance was nothing short of radiant as she supported her husband. Her glossy, waist-length brunette locks, styled with bouncy, curled ends, complemented her peach-toned makeup that highlighted her cheekbones and made her eyes sparkle. John's refined ensemble was enhanced with black accents, elevating his look as they posed for photos together.

The gala also drew the creme de la creme of Hollywood. Celebrities like Steve Martin, Cecily Strong, Tom Hanks, Jon Hamm and Pete Davidson graced the event. Pete Davidson donned a stylish black outfit with a burnt orange leather jacket, while "Saturday Night Live" creator Lorne Michaels and filmmaker J.J. Abrams showcased their sartorial elegance. Vogue Editor-in-Chief Anna Wintour and comedian Cecily Strong turned heads with their striking tomato-red outfits.

Notably, David Letterman and his wife Regina Lasko looked elegant as ever, while other famous faces such as Don Cheadle and wife Bridgid Coulter, and Richard Kind with Renee Elise Goldsberry, completed the stellar guest list.

Olivia Munn continues to inspire many, balancing her career and personal life amid recent health challenges. Having undergone a double mastectomy and a full hysterectomy in April 2023, she emphasized the importance of being present for her family. Speaking on the Today show, she praised her "amazing husband and father" John Mulaney for their unwavering support and partnership during tough times.

Olivia and John's appearance at the All In gala not only supported John's latest creative endeavor but also highlighted their resilience, love, and commitment as they navigated the red carpet, making it a night to remember.