Yellowstone universe stars Luke Grimes and Brandon Sklenar were among the celebrities attending UFC 324 this past weekend!

The Marshals and 1923 stars hit the carpet at the event, which also celebrated the first of UFC‘s matches streaming on Paramount+ at T-Mobile Arena on Saturday (January 24) in Las Vegas.

UFC’s debut on the streamer drew in 4.96 million live average minute audience/streaming views for the main card, with a peak concurrent stream of 5.93 million.

Keep reading to find out more…

The mixed martial arts promotion company now joins the lineup of programming on Paramount+ with just a subscription, not requiring an additional pay-per-view cost.

Other stars in attendance from shows and movies that stream on Paramount+ include NCIS‘ Wilmer Valderrama, Top Gun Maverick‘s Miles Teller, The Amazing Race‘s Phil Keoghan and Big Brother/The Challenge‘s Josh Martinez, alongside several UFC fighters.

Keep scrolling below to see the stars at UFC 324…

Miles Teller & Wife Keleigh

Steve Aoki & Wife Sasha Sofine

Brandon Sklenar

iCarly’s Hannah Stocking

DMV’s Molly Kearney & Gigi Zumbado

Wilmer Valderrama & Wife Amanda Pacheco

Phil Keoghan

Luke Grimes

Watson’s Morris Chestnut

Josh Martinez

Former UFC Champion Chuck Liddell & Wife Heidi

Survivor’s Dee Valladares

UFC Fighter Callum Walsh

UFC Fighter Michael Chandler

UFC Fighter Zhang Mingyang

UFC Fighter Mackenzie Dern

UFC Fighters Kamaru & Manel Kape

UFC Fighter Alex Pereira

UFC Fighter Cory Sandhagen

Former UFC Champion Glover Teixeira

UFC Fighter Fares Ziam

UFC Fighter Aljamain Sterling

Leonardo DiCaprio is celebrating a massive milestone.

The Titanic icon rang in his 50th birthday over the weekend with a star-studded celebration on Saturday night (November 10) in Los Angeles.

Tons of A-list celebrities were in attendance at the bash, and many stars were seen entering and exiting the celebration. Leo is known for having big birthday parties, and this year is certainly no exception for his 50th!

Click through to see who was in attendance at Leonardo DiCaprio’s 50th birthday party…

MMA has become one of the most popular displays of athleticism, agility and sheer power in the world.

Over the years, the mighty fighters who have entered the octagon have gone on to not only amass huge amounts of wealth, but also plenty of acclaim among fans of the combat sport.

Among the legends who have entered the ring, only a few have gone on to enter the conversation of being the best MMA fighter of all time.

MMA fans have placed their votes on Ranker, with over 150,000 votes entered and counting.

We’ve rounded up the top fighters of all time, and ranked them from lowest to highest.

Click through to find out who are the best MMA fighters of all time, ranked…

The stars are stepping out for a big NASCAR pre-season event!

Ashton Kutcher waved a flag on stage to promote bioethanol while attending NASCAR’s Busch Light Clash on Sunday afternoon (February 6) at the L.A. Coliseum in Los Angeles.

Other stars in attendance included Caitlyn Jenner, Miles Teller, Pitch Perfect actor Skylar Astin, black-ish actress Marsai Martin, former UFC Light Heavyweight Champion Chuck Liddell, former pro football player Reggie Bush, and Bones actor David Boreanaz.

During the event, Pitbull and Ice Cube took to the stage for performances while Ally Brooke performed the National Anthem.

If you missed it, Caitlyn just became a grandparent for the 19th time!

Click inside to see 35+ pictures of the stars stepping out for the NASCAR event…

Travis Barker steps out solo for opening night of Halloween Horror Nights at Universal Studios Hollywood on Thursday night (September 9) in Universal City, Calif.

The blink-192 drummer was joined by Jessie J, Stillwater‘s Abigail Breslin, Slash and Meegan Hodges on the red carpet.

Also spotted enjoying the kick off to spooky season were All American‘s Michael Evans Behling, John Michael Higgins, Jaime Camil, Kalen Allen, and The Goldbergs‘ Hayley Orrantia.

The Act‘s Calum Worthy and longtime love Celestia Deastis were also at the event along with Chuck Liddell, Barbara Alyn Woods, Zackary Arthur, Alyvia Alyn Lind, and Don Mancini.

Halloween Horror Nights is going on now through Sunday, October 31.

Check out 35+ pictures inside of Travis Barker, Jessie J, Abigail Breslin and more at Halloween Horror Nights…

Christina Aguilera gives her daughter Summer a kiss while arriving in their car at the 2020 Nights of the Jack Friends & Family Night held at King Gillette Ranch on Wednesday night (September 30) in Calabasas, Calif.

The 39-year-old singer was just one of the many guests at the event, who drove through the socially distanced event to kick off the Halloween month.

Ashlee Simpson, Evan Ross and their kids, Bronx Wentz and Jagger Ross, Tia Carrere, Tyra Banks, Finneas O’Connell and his longtime love Claudia Sulewski, plus Chuck Liddell, Cheyenne Jackson and Jason Landau were also seen at the drive in event.

The young stars of This Is Us, Parker Bates and Mackenzie Hancsicsak arrived in separate cars alongside The Lion King‘s JD McCrary, were also at the event.

The one-of-a-kind Halloween experience was reimagined as a contactless drive-thru trail filled with thousands of hand-carved Jack O’ Lanterns, creating a safe environment for families to still enjoy.

Nights of the Jack will be open to the public from October 1 through November 1.

10+ pictures inside of Christina Aguilera, Ashlee Simpson, Evan Ross and more…

“Do you want a balloon too?”

Demi Lovato got into character as Pennywise, the scary clown from the It films, as she hosted her 4th annual Halloween party at sbe hotspot Hyde Sunset on Saturday night (October 26) in Hollywood.

The 27-year-old singer and actress was joined at the event by Paris Hilton, Nikita Dragun, Kate Beckinsale, Chuck Liddell and more.

Demi and her attendees enjoyed bites from Umami Burger such as their Impossible Sliders, signature burger sliders, crispy chicken sliders and sweet potato fries while Sugar Factory provided candy and sweets.

“Last night was so sick… thanks to @hydesunset @sbecollection @umamiburger 🎈💀🤡👻🎃🖤💋,” Demi captioned with her Instagram post.

FYI: Guests in attendance hydrated with Fiji Water, kept energized with Red Bull, and featured specialty cocktails by Carbonadi vodka and Jaja Tequila, Peroni beer and Besa Mi Vino organic canned wine.

Malin Akerman and Jack Donnelly couple up on the red carpet at the grand opening of the new Raspoutine Los Angeles Club on Friday night (January 18) in Los Angeles.

The 40-year-old Billions actress rocked a leather outfit as the 32-year-old actor showed some skin in an unbuttoned-gray shirt and leather jacket for the event hosted by treat! Magazine.

PHOTOS: Check out the latest pics of Malin Akerman

Other stars at the opening included Teen Wolf actor Tyler Hoechlin, model Shaun Ross, and former UFC Light Heavyweight Champion Chuck Liddell.

10+ pictures inside of the stars stepping out for the opening…

Luke Evans and Zoe Saldana pose for photos while stopping by Universal Studios Hollywood throughout the past week in Universal City, Calif.

While most of the stars have been stepping out to check out the Halloween Horror Nights attraction, Luke went during the daytime to visit the new Fast & Furious – Supercharged thrill ride as he is part of the film’s cast.

In addition to Zoe, stars that stepped out for the frights were Josh Hutcherson, Demi Lovato, Tori Kelly, Pia Mia, Leona Lewis, UFC fighter Chuck Liddell, Jane the Virgin‘s Jaime Camil, model Chanel Iman with basketball player Jordan Clarkson, John Stamos and the cast of Grandfathered, Mark-Paul Gosselaar and the cast of Truth Be Told, Lab Rats‘ Kelli Berglund, and Wayne Brady.