Happy 33rd Birthday, Jessica Biel! Check Out 7th Heaven's Mary Camden Get Her Dance On HERE!

Once upon a time, Jessica Biel was best known for her role as the “bad girl” of 7th Heaven — Mary Camden.
From fake tattoos (go Wildcats!) to trashing school gymnasiums, Mary’s character wreaked havoc on the beloved sitcom for years, until she was exiled to live with her grandparents in New York.
[ Related: Jessica Shows A MASSIVE Bump While On Set Of Her New Movie! ]
Besides being absolutely gorgeous, Biel’s character always kept us guessing and was arguably the most fun to watch on the show.
Check out a throwback clip of Mary dancing around the Camden’s house (below)!

Aww how adorable and hilarious! We hope Jessica’s little nugget-to-be with Justin Timberlake sees this awesome vid one day!!
Happy b-day, girl!