She recently arrived back home in California after jetting down to Brazil to support her fiancé Machine Gun Kelly at his Lollapalooza performance.

And Megan Fox, 35, enjoyed some quality time with her three children in Malibu on Tuesday as they picked up ice cream.

While she was focusing on her family, MGK, 31, was spotted over in Hollywood as he arrived at Jimmy Kimmel Live for an appearance on Tuesday night's show. 

Megan was dressed for comfort on the family out with a baggy gray sweatshirt decorated with raised pink hearts.

She paired it with pale blue jeans that were blown out at the knees, along with low-key white sneakers. She wore her long raven tresses cascading down her shoulders, and she carried a large water bottle to keep herself hydrated. 

Megan's eldest child, nine-year-old Noah, was dressed in a pink tie-dye 'Strong Girls, Strong World' shirt with orange-and-white tie-dye shorts and white trainers.

Bodhi, eight, rocked a black Led Zeppelin T-shirt and camouflage pants with black trainers, while Journey, five, had on a black-and-gray tie-dye t-shirt with gray pants and black shoes.

Farther inland in Hollywood, Megan's fiancé Machine Gun Kelly was seen arriving at the studio for his appearance on Jimmy Kimmel Live.

The rapper-turned-rocker stood out in a black Powerpuff Girls shirt embroidered with illustrations of the title characters and colorful cartoon flowers.

He wore it with baggy black pants and white platform shoes, and he sported the spiky pale pink hair he has lately worn.

For his appearance, MGK (born Colson Baker) filmed a man-on-the-street segment in which he had to use a disguise so as not to alert people walking around Hollywood to his true identity.

The musician was unrecognizable later in the day after he switched out his usual punk attire in favor of a tan suit and a red striped tie.

He covered up his pink hair with a short brown wig, and he even wore a mustache and mutton chops to disguise his face, along with round-frame glasses. MGK appeared to have tried to cover up some of his hand tattoos, though they were still somewhat visible. 

To make himself look even more like a reporter, he wore a large 'PRESS' pass for the 'Daily Music,' which labeled him 'Maverick.'

The rapper could be seen stopping several people passing by on the street to ask them questions.