Single mom Hilary Duff stepped out with her son Luca, nearly 3, in Los Angeles, Calif. on Monday (February 9). The mother-son duo walked hand-in-hand after shopping for toys.

Hilary is back in L.A. after traveling to Sweden for a few days to work on new music material.

While she loves being back in the studio, spending time away from her son took its toll.

“Miss him something terrible today,” the Lizzie McGuire alum, 27, recently Instagrammed a shot of her tot hiding under the covers.

Miss him something terrible today

A photo posted by Hilary Duff (@hilaryduff) on Feb 5, 2015 at 4:32am PST

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Five-time Grammy Award winner Christina Aguilera is returning to The Voice after welcoming daughter Summer Rain five months ago.

“She’s just gorgeous,” Aguilera gushed to E! News. “She’s so beautiful and she’s so peaceful and awesome and just a gem. She really is – just loves life!”

The Beautiful singer – who is also mom to 7-year-old son Max – says there’s a difference between the sexes.

“Girls are a little more sensitive,” she shared. “I can tell even in her cry. It just takes a little bit longer whenever she gets worked up and upset about something, if she’s hungry or whatever, to calm down.”

She added: “She does that little like, ‘OK, if I have to calm down now. It’s so cute, though! There’s a difference between boys and girls—to me, anyway. Boys are a little more tough, like [they] shake it off a little bit better. But it makes me want to just protect her so much more.”

It sounds like she’s loving every minute with her sweet baby girl.

“Its just like, ‘Oh, my God, world! Don’t corrupt her,’” she joked.

And as it turns out, her son “loves being a big brother.” She added of her son: “I have no complaints. Beyond my expectations. He’s like an old grandma coming in the room. He’s 7 and he was just so engaged with her.”

At that, Aguilera’s co-star Adam Levine chimed in, “He’s 7? I feel like he was like 3 when I started, or 4.”

“That’s how long we’ve been doing The Voice,” he added.

“When are you going to have a baby?” Aguilera then asked. “Hello!”

“Oh, dude. Soon,” said Levine, who married supermodel Behati Prinsloo in July 2014.

Aguilera added: “Adam, when is it going to happen for you?”

“I don’t know Christina. We’re looking at the next year,” he joked. “We have some time.”

NBC’s The Voice returns for its eighth season Feb. 23.

There’s a new male artist that everyone’s talking about. Surprise. He’s now been linked to Taylor Swift.

Taylor and Hozier were both at Sam Smith’s Grammys after-party on Sunday night. According to E! News, they were hanging out a lot. And flirty. And laughing. And may…      

There’s a new male artist that everyone’s talking about. Surprise. He’s now been linked to Taylor Swift.

Taylor and Hozier were both at Sam Smith’s Grammys after-party on Sunday night. According to E! News, they were hanging out a lot. And flirty. And laughing. And may…      

There’s a new male artist that everyone’s talking about. Surprise. He’s now been linked to Taylor Swift.

Taylor and Hozier were both at Sam Smith’s Grammys after-party on Sunday night. According to E! News, they were hanging out a lot. And flirty. And laughing. And may…      

Leonardo DiCaprio was trying to make Rihanna jealous (Dlisted)

Uma Thurman at The Slap premiere (Just Jared)

Miley Cyrus is tongue tied (The Superficial)

Benedict Cumberbatch is going to a nerd party (Cele|bitchy)

GORGEOUS LUPITA (Too Fab)

Fifty S…      

Leonardo DiCaprio was trying to make Rihanna jealous (Dlisted)

Uma Thurman at The Slap premiere (Just Jared)

Miley Cyrus is tongue tied (The Superficial)

Benedict Cumberbatch is going to a nerd party (Cele|bitchy)

GORGEOUS LUPITA (Too Fab)

Fifty S…      

Leonardo DiCaprio was trying to make Rihanna jealous (Dlisted)

Uma Thurman at The Slap premiere (Just Jared)

Miley Cyrus is tongue tied (The Superficial)

Benedict Cumberbatch is going to a nerd party (Cele|bitchy)

GORGEOUS LUPITA (Too Fab)

Fifty S…      

Beautiful bunch!

Actor Kevin Costner and wife Christine Baumgartner posed with their three kids – sons Cayden, 7, Hayes, 6, and 4-year-old daughter Grace – at the premiere of McFarland USA in Los Angeles, Calif. on Monday (February 9).

In the new Disney film, Kevin portrays Jim White, the award winning coach who led a cross country team of predominantly Latino high school students to victory in 1987.

Although dad stars in the new sports flick, it sounds like their home is Frozen obsessed.

“My little girl dresses up every day,” Costner told PEOPLE. “It’s the Frozen household. Everybody has to freeze when she says so. The boys are just so sick of it!”

And although Let it Go has gotten on everyone’s nerves, the actor wouldn’t change a thing.

“It’s really fun to see [all my kids] together,” says the dad of seven, who also has four grown children.

He added: “It’s been a really good life and my children are living proof.”

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Charlize Theron and Sean Penn, rumoured to be engaged, were at the park with son Jackson on the weekend. They look really, really happy. And you know how these two feel about cameras. Like, they actively try to NOT look happy around cameras. So if they look happy it could be because they can&rsqu…