Caught in the Act

Miley Cyrus Rocks Out with Liam (and Her Family!) in Hollywood

UPDATED 10/05/2012 at 06:00 AM EDT • Originally published 10/05/2012 at 06:00 AM EDT

That's one rockin' family!

Miley Cyrus , fiancé Liam Hemsworth and brother Trace stepped out to support sister Brandi Cyrus at the Troubadour in West Hollywood on Monday night.

The trio couldn't be more excited to see Brandi's band Frank + Derol perform.

"They watched the show from the balcony and cheered the girls on," a concertgoer tells PEOPLE.



Trace proudly Tweeted, "My sister Brandi killed it at her show tonight! So proud of her for going on this tour! 1st show was sold out! Good sign!"

Miley also showed her support for her sister on Twitter, sharing a photo of the venue's marquee with followers.

twitter.com/MileyCyrus/sta…

— Miley Ray Cyrus (@MileyCyrus) October 2, 2012

– Marisa Laudadio

Spot a celebrity? Tweet us your sighting @peoplemag with #CITA and it could appear on PEOPLE.com!

— People magazine (@peoplemag) August 7, 2012

NEXT: Jef Holm Challenges DWTS Star Karina Smirnoff to a Dance Off in Hollywood