That's a milestone! Mariska Hargitay celebrates 400th episode of Law & Order: SVU with Ice-T and Coco

Mariska Hargitay and Ice-T both brought their significant others to a party on Wednesday celebrating a major milestone for their NBC show.

The 52-year-old actress wore a lacy short-sleeved black dress as TV Guide Magazine celebrated the 400th episode of her series Law & Order: Special Victims Unit at the Gansevoort Park Avenue in New York City.

Mariska attended the bash with her actor husband Peter Hermann who looked dapper in a blue suit. 

Television star: Mariska Hargitay donned a black lacy dress on Wednesday to celebrate the 400th episode of Law & Order: Special Victims Unit in New York City

Her co-star Ice-T, 58, wore typical all-black including a Los Angeles cap.

He was accompanied by his wife Coca Austin, 37, who showed her curves in a tight yellow floral print dress.

Mariska smiled while standing next to a poster-size cover of TV Guide with her on the cover marking the show's 400th episode.

She also teamed up with show creator Dick Wolf, 70, who started the whole Law & Order franchise. 

Cute couple: Ice-T brought his wife Coco Austin to the bash at Gansevoort Park Avenue

Floral print: Coco had her curves on display in a tight yellow floral print dress

Mother of one: Coco and Ice-T have a one-year-old daughter Chanel

Number one: Ice-T and Mariska both wore all-black to the party hosted by TV Guide

Michelle Hurd, 50, stood out in a dress that featured a black blouse with white hearts and a colorful skirt.

Kelli Giddish, 36, and 400th episode guest star Sarah Wynter also were at the bash.

Series regulars Peter Scanavino, Kelli, Ice-T and Mariska were spotted goofing around and enjoying a laugh together. 

Cover girl: Mariska pointed to a poster-size TV Guide cover featuring herself

The creator: Law & Order franchise creator Dick Wolf teamed up with Mariska

Going strong: Mariska brought her actor husband Peter Hermann to the party

The NBC legal procedural premiered in September 1999 with Mariska starring alongside 55-year-old Christopher Meloni.

Chris left the spin-off of Law & Order after 12 seasons after a contract could not be reached.

Ice-T joined the series during its second season. 

Cool dress: Michelle Hurd stood out in a colorful dress

Guest and star: Sarah Wynter, left, who stars as  a guest in the 400th episode attended the party along with series regular Kelli Giddish

Law & Order: SVU was renewed last February for an 18th season and is the only remaining series in the franchise.

The original Law & Order was cancelled by NBC after its 20th season.

Law & Order: SVU follows New York Police Department detectives as they investigate and prosecute sexually based offenses. 

Good times: Series regulars Peter Scanavino, Kelli, Ice-T and Mariska were having fun together


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