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!"

Dressed down in a long skirt and a skull-and-crossbones tee, Brenda Song flashed her cushion-cut diamond engagement ring while exiting her Mercedes G-Wagon at an LA Starbucks, on Friday.

The Social Network star and her beau, Trace Cyrus, began dating in May and announced their engagement via Twitter last month. "I am very excited to say, last week I asked my girlfriend Brenda Song to marry me and she said YES! We are both very excited to be engaged!" Cyrus, 22, Tweeted after his proposal.

It was rumored that Song, 23, was pregnant with the couple's first child, but the pair have never confirmed the news.

Newly engaged Brenda Song (fiance is Trace Cyrus) flashed her blingin' ring in Beverly Hills on Saturday morning as she grabbed coffee and a pastry.

The actress kept things casual in Uggs and shorts, but paid homage to Trace by showing off her rocker side -- she sported a studded bag and a skull on the back of her sweater.

Song, 23, and Cyrus, 22, became engaged two weeks ago.

Today Brenda Song was spotted arriving at the Four Seasons in Beverly Hills for a meeting, and the Social Network starlet gave us a little peek at her engagement ring from fiance Trace Cyrus.

The couple announced the news on Friday when Trace tweeted, "I am very excited to say, last week I asked my girlfriend Brenda Song to marry me and she said YES! We are both very excited to be engaged!" So what does teen superstar Miley think about her brother's engagement? She wrote, "Can't wait for Brenda to be a Cyrus :) couldn't be more excited about my 'sister in law to be' yay :)" Aww, wonder if Miley will be the maid of honor? Who knows, but we can't wait to get another glimpse of Brenda's bling!

After much speculation that the couple might be expecting ... Trace Cyrus and Brenda Song announced today they're engaged to be married.

Miley's brother Tweeted: "I am very excited to say, last week I asked my girlfriend Brenda Song to marry me and she said YES! We are both very excited to be engaged."

Song, known for her role on Suite Life With Zach and Cody on the Disney Channel, and for her role as Andrew Garfield's girlfriend in The Social Network began dating the rocker/clothing designer earlier this spring. Their first appearance together was at a Nylon magazine party in May.

X17online snapped some seemingly sad photos of a teary Song returning home from the hospital three weeks ago with Trace and Tish Cyrus by her side.

The actress' mother denied reports her daughter was pregnant but there was never any official word from Song's publicist.

Brenda Song couldn't hold back her tears as she exited a car in an oversized t-shirt and slippers, after a trip to the hospital in LA, on Thursday.

The former Disney star was escorted by her boyfriend, Miley Cyrus's big bro Trace, and mom Tish, who picked up the actress at Providence St. Joseph Hospital in Burbank, before bringing her back home to rest.

An X17 photographer on the scene tells us:

"Brenda seemed really upset. She was sobbing and covering her face and Trace was obviously really concerned. He helped Brenda out of the car — he appeared worried because she was weak."

Trace followed his girlfriend inside to comfort her, while Tish helped around the house by taking out the trash. The pair left Brenda's side after a few of hours, and returned to their Toluca Lake home nearby.

Rumors began to swirl last month that Song and Cyrus were expecting a baby early next year, but the Social Network star's mom has adamantly denied those claims, while the couple has yet to confirm the reports.

She may be putting on a strong facade, but all the pregnancy rumors have upset Disney darling Brenda Song.

The Social Network star looked somber as she chatted on the phone while running errands in Los Angeles Thursday. No baby bump could be spotted through the lacey black tank and skirt combo Brenda wore, and that's with good reason -- her mother, Mai Song, says her daughter is not expecting a child with her boyfriend, Miley Cyrus' brother Trace Cyrus.

Brenda's mom, who previously battled breast cancer but is back in treatment, told Star magazine:

“She’s actually not pregnant. It’s very upsetting to our family because of what I’m going through and it’s not how we raised her."

Pregnant or not, the one thing that's clear is that Brenda, 23, is tight with the Cyrus clan -- and heavily influenced by them. A few months ago, Miley was spotted with a new anchor tattoo on her wrist. Now Brenda has stepped out with a similar tattoo on her pinky.

It should be no surprise as Trace is covered in ink from head-to-toe.

Maybe dogs are the new way to hide a growing belly?

Brenda Song brought her cute pups to get groomed in Studio City Thursday afternoon, just one day after her secret was let out of the bag - the former Disney darling is pregnant!

Dressed in an off-the-shoulder pink sweatshirt, tiny gym shorts and black boots, Brenda stayed mum when asked about becoming a mom.

Though her reps have also yet to comment, multiple sources are saying that Brenda, 23, is expecting her first child with boyfriend Trace Cyrus, 22.