Miranda Lambert will kick off her Certified Platinum Tour in Evansville, Indiana, on Thursday, but she shocked fans Tuesday by surprising fans in Nashville with a popup concert and a new hair color that is anything but platinum.

Miranda Lambert treated about 80 fans with a concert with only a few hours notice sent out earlier in the day.

According to The Tennessean newspaper, Miranda Lambert told the assembled crowd that she and her band “were just ready to play for some people” when they took the stage just three hours after making the announcement.

However, when Miranda Lambert took to the small stage, few noticed her sexy leather short-shorts over sheer tights and a skimpy T-shirt with Nashville written across the the front. Oh no. All eyes were on Miranda Lambert’s darker hair.

The ashy-brown hair completely changes Miranda Lambert’s look and is an ironic twist just before the launch of her tour.

Been at rehearsals all week in Nashville for the #CertifiedPlatinum tour. We are so excited that we decided to kick it off right…so…

— Miranda Lambert (@mirandalambert) January 13, 2015

So…we are playing tonight!!!!!  Exit/In 2208 Elliston Pl. 18+. no cover. 7pm doors.  Can't wait to see Yall Nashville! #CertifiedPlatinum

— Miranda Lambert (@mirandalambert) January 13, 2015

The blond superstar went full-on platinum last summer. Miranda Lambert said the look was inspired by Marilyn Monroe.

“Who wouldnt want to look like Marilyn Monroe? With the album being [called] Platinum I got lighter in my hair because I wanted to pay homage to the title of the record,” she said in July.

Photos and videos from @MirandaLambert's surprise @Exit_In show last night in #Nashville http://t.co/FV5pl8eRf1 pic.twitter.com/OqhWw5c1bD

— Tennessean Music (@TNMusicNews) January 14, 2015

.@MirandaLambert is a BRUNETTE! More deets on the bold new color she just debuted: http://t.co/Ogo0WbOnqV pic.twitter.com/y6dyU7grGH

— Cody Alan (@cmtcody) January 14, 2015

Miranda Lambert’s tour will also feature Justin Moore, RaeLynn, Sunny Sweeney, Ashley Monroe and Danielle Bradbery.