Brenda Song  grateful dead tie dye shirt

Newly engaged Brenda Song looked ultra-comfy in a cross-adorned maxi skirt, paired with an oversized skull sweatshirt, while running errands in Toluca Lake, Calif., on Thursday afternoon.

The former Disney star is set to marry Miley Cyrus's older brother Trace sometime this year, after Cyrus propped the question with a gorgeous princess-cut diamond sparkler last October.

Miss Miley was so excited by the news, she immediately Tweeted: "@TraceCyrus can't wait for Brenda to be a Cyrus :) couldn't be more excited about my 'sister in law to be' yay :)."

As for her new fiancé, he's been hard at work planning his next tour! The singer revealed via Twitter this week: "Working on getting some concerts going with Ashland High! I should be hitting the road in Febuary!"