Julianne Hough: I'm So Proud of My Brother Derek!

Julianne Hough checks her cell phone for messages as she leaves the gym after a workout on Tuesday (July 30) in West Hollywood, Calif.

“So proud of my brother @derekhough He just killed it performing with the LA Phil… You made us cry D man! Love you xoxo,” the 25-year-old actress recently tweeted.

PHOTOS: Check out the latest pics of Julianne Hough

A few days earlier, Julianne was spotted heading to a salon before attending Fergie‘s baby shower at the SLS Hotel in Beverly Hills.

25+ pics inside of Julianne Hough…