Credit: Instagram

Remember back in the ye olden days (aka last summer) when Teen Mom star Catelynn Lowell made waves with a hot new look? Our girl rocked some serious hair extensions, which she showed off on Twitter with the appropriate hashtag #longhairdontcare (naturally). Catelynn loved the look so much she's trying to make it permanent by growing out her chin-length locks!

"Please grow faster hair!!!" Catelynn tweeted on April 26, along with a self-taken picture.

We think Cate's looking more sophisticated than ever — she recently lost 20 pounds with the help of Weight Watchers! — and a sleek new 'do would take her style to the next level. Catelynn, now 21, has rocked super short hair for as long as we can remember (at one point it even rivaled The Kate Gosselin and we're still traumatized), but it's high time for a change. Perhaps Teen Mom 2's cosmetologist extraordinaire Chelsea Houska can give our girl some haircare pointers!

Of course, Cate's not the only one experimenting with personal style. Catelynn's Teen Mom co-star and soon-to-be hubby Tyler Baltierra is kicking up his look with a high-impact workout regimen. He recently posted a shirtless picture on Instagram and it's hard to believe he's the same kid we first met on 16 and Pregnant back in 2009.

They grow up so fast, don't they?!

Do you think prefer Catelynn's hair long or short? Tell us below!