Miley Cyrus can't stop changing her hairstyle!

The unpredictable pop star attended a concert sporting a brand new bob haircut on December 8, which is much different than the hairdo she had the night before.

Miley wore the bob while attending the Almost Acoustic Christmas concert in L.A., thrown by rock radio station KROQ. Then, Mi-Cy posted photos of herself on Instagram with the bob while posing with two of her favorite rock bands.

"@GROUPLOVE For the first time, I'm not the one in the pic grabbin' my [breasts]! #sluttysantayearround #KROQXMAS," Miley captions the pic of herself with Grouplove. In the pic, a member of Grouplove is examining her own chest. 

"@CageTheElephant fking killllllllled it last night #KROQXMAS," was Miley's caption for the shot of her and Cage the Elephant.

Credit: Gabriel Olsen/Getty Images Photo: Miley Cyrus at the 24th Annual KROQ Almost Acoustic Christmas in Los Angeles, California on December 7, 2013

But will Miley be wearing that bob from now on? We're not so sure, since the hairdo appears to be a wig. Case in point: Miley had her much-shorter haircut — with shaved sides — just the night before when she performed at the Staples Center. 

After the rock concert, Miley apparently stayed up a bit late. "Dedicating my day to doing nothing besides laying in the bed," she tweeted the next afternoon.

What do you think of Miley's bob?

Source: Miley Cyrus on Instagram