Rocking a short, wavy bob, the mother-of-one was all smiles as she showed off her new look to her fans on social media.
"Thanks for the cute cut @sydneyfink_coast @coasthairsalon," she wrote. "I feel 10 lbs lighter and 10% smarter."
The Dirty, Sexy, Funny radio host also revealed the secret to her voluminous shorter 'do, and you guessed it, it's more extensions!
"Cuz it's fake. #extensions," the always honest star replied when a follower asked what she does to get so much volume in her hair.
Fans were loving her shorter hairstyle — and a few were even inspired to follow in her footsteps for spring.
"I may need that cut! I love it!," one follower wrote before another added, "THIS is how I want my hair!"
One person we know loves Jenny's hair in any length his her hubby Donnie Wahlberg, 47, who Jenny, 44, has admitted was her childhood crush.
"The very first time I saw him, I was in the eighth grade and New Kids on the Block was on MTV,” Jenny said. “I thought Donnie was the hottest one.”
And while fans would love to see the couple start a family together, they are not planning on having kids anytime soon.
"I'm like, 'Oh my god, I really, really kind of still' — I'm at that age where it's like really tick tock," she told Entertainment Tonight. "And we both said we enjoy each other's company so much, and we have three kids! So, we want to be able to give all our energy to them and still enjoy our golden years."
Donnie continued, "After working all these years together, to be able to focus on our children, and to burden them with another child, and to burden ourselves at such an early stage in our relationship — we'll let the other boys graduate high school and see what happens then."
For more celebs who have rocked long and short hair, click through the gallery below!