Jamie Lynn Spears Turns 20

Jamie Lynn Spears is a teen mom no longer. Spears celebrated her 20th birthday Monday and took to Twitter over the weekend to share some of her plans for the milestone.

In 2007, Jamie Lynn set off a headline-grabbing scandal when she came home 16 & Pregnantbefore the MTV series of the same name made C-sections and nipple pumps more popular with teen girls than a prom queen tiara.

On Saturday, Britney’s little sis Tweeted a photo of her and daughter Maddie playing dress-up with the caption: “What else do you do on your 20th birthday weekend?”

“Just got serenaded by Maddie’s preschool class- no present will top that!!!” the former star of Nickelodeon’s Zoey 101 wrote this afternoon.

Spears ended her relationship with Maddie’s father, Casey Aldridge, last fall. She now lives with her toddler in The Spears Family’s native of Louisiana.