Here comes the sun!

Hilary Duff looked bright and sunny yesterday while running errands in Los Angeles with her adorable son Luca. Sporting a yellow top and flower print pants, the former Lizzie McGuire star resembled an archetypal '60s wife. Her big-framed aqua sunglasses completed the retro look. Hilary carried her baby on her hip before resting the 14-month-old on her shoulder when he fell asleep. We have to say, he looks even cuter asleep.

The actress told In Touch that becoming a mother has drastically changed both her personal and professional lives.

"Motherhood has been a huge life adjustment," she told the magazine in May. "It's been the most wonderful time of my life - but also the most tiring. ... He went straight to running from crawling instead of walking so I'm on my feet all day long training him."

It looks like she finally wore him out.

Who knew she was so Hilary-ious?

Yesterday afternoon Hilary Duff was out and about in Los Angeles, and we're not sure why she sat down on a bench at the nearby bus stop, but she was certainly in a playful mood!

The former Disney star then headed to a local grocery store to pick up some flowers, and she smiled sweetly for the cameras:

She looks unbelievable!

Hilary Duff carried her sleepy son Luca out of Mommy-And-Me class yesterday, and the Lizzie Maguire star decided to show off her post baby body in a pair of tight white jeans. Adorbs!

The singer/actress never steps out without her baby boy, and it sounds like the little one is really growing up quickly!

"I'm at a really fun stage right now. My son is 13 months, so we just celebrated his first birthday. He's running around everywhere. He knows what he wants and what he doesn't like and really has a personality now," she recently told omg! Insider .

The Duffster hasn't totally put her career on the back burner for motherhood, though!

"I'm starting to get back into the studio again - I want to work on my music, but it's tough to be pulled away from Luca. Whatever I work on, I want it to be worth missing time with him," she added.

Can't wait to hear the new tunes, Hil!

Hilary Duff and baby Luca make one dynamic duo.

The mother and son were all smiles while heading to their weekly Mommy and Me class yesterday. The fair-haired pair looked adorable as they strolled through Studio City.

The actress was casual chic in wide-leg yellow linen pants, a plain white tank, and a large yellow tote. But her best accessory of all? Baby Luca, of course. He looked equally hip in a Great Universe T-shirt, cargo pants, and white Converse.

She later enjoyed a healthy lunch with her 14-month-old in West Hollywood. The singer, who munched on greens, looks fitter than ever.

"I never had to lose so much before, and it took awhile to get mentally motivated," Hilary told Life & Style. "I was enjoying being home with my baby, and I wasn’t super strict with my diet."

Well, whatever she's doing, it seems to be paying off.

"I've never had that much weight to lose before," she told the mag. "I was like, 'It's not coming off.' I love to exercise but I'm the worst dieter in the world. Now I'm finally getting to a place where my old clothes are fitting. It's taken a year and it was harder than I thought it was going to be. But I feel really good."

We miss seeing the Lizzie McGuire star grace the small screen. She will hopefully return to Two and a Half Men as a series regular next season.

All those daily Pilates sessions are sure paying off!

Hilary Duff took her adorable son Luca to a Mommy-And-Me class today in Studio City, and the singer/actress decided to show off her amazingly toned arms in a sleeveless green blouse, which she paired with skinny jeans that showed off her equally slender stems!

She might be back to her pre-baby bod, but the Lizzie Maguire star insists it wasn't as easy at it looked!

"I'm finally at a comfortable place with my body. It took me a full year," she recently told Life & Style.

We think she looks more fit than ever! You go Hil!

They're inseparable!

Yesterday, Hilary Duff decided to take her adorable little boy Luca out with her as she did a bit of shopping at Neiman Marcus.

The 25-year-old actress and mother has enjoyed motherhood but recently admitted that things weren't always sunshine and lollipops.

"I was enjoying being home with my baby, and I wasn't super strict with my diet," she told Life & Style. "I never had to lose so much before, and it took a while to get mentally motivated. I'm finally at a comfortable place with my body."

Looks like her regime, which included a revamped diet & boxing, paid off!

On Thursday Hilary Duff and hubby Mike Comrie took their bouncing baby boy Luca out to a lil' play date for the day ... what a cutie!

Earlier in the week Hilary took her 13-month-old to get his first haircut at the Tipperary salon for kids in Beverly Hills, and she recorded the milestone event on her iPhone with pictures and video. He certainly is growing up fast!

While the 25-year-old actress has been busy on mommy duty, she has managed to keep her career afloat, having appeared in last night's episode of Two and a Half Men. When Hil chatted with Mario Lopez the other day about her guest spot for the show she said of her character, “She’s a little sex-crazed junkie! I mean, I get to play a crazy party girl.”

Guess Hil and her hubby will put Luca to bed before checking that out!

We can't believe how fast Hilary Duff's little boy is growing up!

Hilary carried her adorable son Luca out of a Mommy and Me class in the valley on Wednesday, and not only is he no longer a baby, but she's looking super svelte these days!

When she's not on parent duty or shopping, she's slowly getting back into acting. We already knew she was guest-starring on Two And A Half Men, but we totally forgot her episode aired today! Last night Hil tweeted, "Guess what?! I'm gonna be on the season finale of #TwoAndAHalfMen tomm! Thursday @ 8:31pm ET/PT on CBS! Don't be a minute late ;)." Can't wait to check it out!