If you dont know who this spunky girl is, then look at the last name. Yup, Jamie Lynn is Britney Spears’ little sister. This chick was born on April 4th, 1991, so in a few months little Britney will be ready to get drunk outside USA and do have fun with guys older than 18 in the States. Guys, Just know this girl knows how to rock out.. At the age of 17, she already has a kid and most likely has sampled her block.  Check out pictures of Jamie Lynn Spears  – Almost 18 years old