'Saved by the Bell' Star Tiffani Thiessen Rings in 50 Wearing Nothing but Her Birthday Suit

Tiffani Thiessen celebrated the big 5-0 on Tuesday, Jan. 23. And the actress, best known for her role of Kelly Kapowski on NBC's Saved by the Bell, proved that age is nothing but a number in a sexy Instagram post ringing in the milestone.

"Over the hill," she captioned the simple photo, in which the brunette appears sitting up in bed seemingly wearing nothing, with a white sheet wrapped around her. "This is 50," she added in a hashtag.

Many of Thiessen's Hollywood friends and colleagues took to the comments to wish her a happy birthday. Buffy the Vampire Slayer actress Sarah Michelle Gellar wrote that the Long Beach native "looks pretty [fire emoji] to me." "Welcome to the 5th level kid!" exclaimed Mario Lopez, who appeared alongside Thiessen in the 2020 Peacock revival of Saved by the Bell, which ran for two seasons.

"Happy Birthday! I remember knowing you as a teenager and hoping to be as gorgeous as you one day," added her fellow former teen actress,  Jennifer Love Hewitt. "And I still feel the same! You make 50 look great!"

Like a growing number of actresses her age, Thiessen has resisted pressure from Hollywood to go under the knife to have her appearance cosmetically altered. In an interview with Page Six last September, she revealed why she had made the decision to age naturally.

"I like my laugh lines," she told the publication. "And I call them laugh lines and happy lines because that’s what they are, you know? And I also cried a lot ... So they probably were created for that, too. But that’s life. And I earned them."