Jessica Biel will always be Mary Camden!
The 35-year-old actress took to Instagram on Saturday to celebrate the 21-year anniversary of 7th Heaven's premiere with an adorable throwback photo.
"7th Heaven first aired 21 years ago today. Happy birthday, 7th Heaven- lemme buy you a drink. 💗," Biel wrote alongside a flashback snap of herself and her on-screen sister, Beverley Mitchell.
Mitchell also made an appearance in a behind-the-scenes shot Biel shared on Thursday, alongside their on-screen brother, Barry Watson.
"Photo evidence I was rocking mom jeans way before I was actually a mom," the now-mom to 2-year-old son Silas captioned the photo.
ET was with Biel and the rest of the 7th Heaven cast of the WB show's first season in 1996. Watch below.
