Miranda Lambert haircut

Miranda Lambert shows off a shorter haircut at the "Automatic" No. 1 party in Nashville. (Rick Diamond / Getty Images for BMI)

Guess what, long hair? Miranda Lambert is over you!

The country star said goodbye to fishtail braids and sleek blow-outs and debuted a bob haircut Monday during a party in Nashville to celebrate her recent single "Automatic."

The 30-year-old crooner joined co-writers Nicolle Galyon and Natalie Hemby, and the trio put on their best vintage high school dresses and corsages to revel in the success of Lambert's latest album, "Platinum."

Lambert donned pearls and a poufy pink dress and teased her shorter coif as high as possible. She also rode with her girls in a red vintage pickup and carried a sign that read "Homecoming '55."

Inside the party, her silvery slip peaked out from under the layers of pink and matched her silver heels.

The singer is gearing up for her "Platinum Tour," which kicks off July 10 in Fort Loramie, Ohio, and includes Justin Moore and Thomas Rhett.

Earlier this month, the tabloid staple told The Times that her single "Priscilla" addresses the made-up stories about her and her husband, fellow country star and "The Voice" coach Blake Shelton.

"That's the truth, you can't hide it, so I might as well address it — in a fun way," the "Nashville Star" alum said. "The one thing I've always done on my records is just be who I am and not skirt around the issues. ... [Now] the issues are just a little more prominent than they've ever been because I'm at a new level, I guess."

Gossip about the pair has included cheating scandals and pregnancy and divorce rumors, which she said "used to be an annoyance, now it's just literally funny."

"It's so outlandish that nobody believes it anyway. At first it was, 'How can they say that? It's not the truth!' But it's so frequent and it contradicts itself," she said. "One magazine will say I'm 'happy and healthy and better than ever!' And there's another one that says, 'Alone and pregnant and divorced.' It took some adjusting. We're just country singers — what are we doing in the tabloids?"

Lambert was on the cover of the June issue of Women's Health, and in the interview, her admission that she looks to Britney Spears for inspiration got the attention of the 32-year-old pop star.

"#regram So flattered by this @mirandalambert! My sister @jamielynnspears just showed me. You look amazing!! @womenshealthmag," Spears wrote, sharing a pic of the mag's cover and spread.

To which Lambert replied, "This is so cool! Thanks girls!" 

As they say in the South: The higher the hair, the closer to God. Follow me @NardineSaad.