Pamela Anderson greets ex-husband Tommy Lee with a kiss

They were one of the most famous Hollywood couples of the late '90s, and on Wednesday night, Pamela Anderson and Tommy Lee reunited.

The former spouses greeted each other with a hug and a kiss while at PETA's 35th Anniversary Party in Los Angeles, California. Anderson co-hosted the star-studded event at the Hollywood Palladium alongside actress Anjelica Huston, while Lee was among the honorees.

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An attendee at the event tells ET that Anderson was smiling during Lee's acceptance speech and there was a moment when the two were onstage together. The former couple were seated on opposite sides of the venue but ET's source says they "didn't seem awkward."

The 48-year-old former "Baywatch" star turned heads in her dark blue, sequin Vivienne Westwood gown, and her 52-year-old ex ditched his rocker duds for a sleek black suit. Both wished the organization a happy anniversary on their Instagram accounts, but Lee seemed more thrilled to see Paul McCartney perform than to be running into his ex-wife.