You knew it was going to happen the minute you heard she was pregnant. Jamie Lynn Spears, the star of Nickelodeon's Zoey 101 and sister of pop star Britney Spears, has given birth to a baby girl.

A friend of the 17-year-old star requested anonymity for this information. The birth has not officially been announced yet, although it seems to be on all the major news outlets. Who do they think they're fooling?

The article mentions that baby-daddy is Casey Aldridge, a pipe-layer from Liberty, Mississippi. Insert your own joke here. The couple is not yet married, but announced an engagement a few months ago.

Fortunately, the fourth and final season of Zoey 101 was completed before Jamie Lynn became pregnant. Had she not become pregnant, would it truly have been the final season?

Mind you, this now frees up some time for Jamie Lynn. Maybe she can follow in her sister's footsteps and get a guest spot on How I Met Your Mother?

The Jonas Brothers ... Jamie-Lynn Spears ... Miley Cyrus ... find out where they rank on our list.

Once upon a time, it was possible for a TV child star to get by on an impish smile and cute catchphrase.

Today's crop of kiddie performers don't have it so easy; they need to be double or triple threats who not only head up their own shows and/or TV movies, but sing, dance, star on the big screen, sell out concerts and launch clothing lines (despite some occasional personal missteps).

Here we count down the 20 hottest faves of the teen and tween pack.