Aww! Justin Bieber Spends Day with Sister Jazmyn, 4

Justin Bieber and sister Jazmyn in Woodland Hills, California on July 25, 2012. FAMEFLYNET PICTURES

Even though he's the No. 2 highest-paid celebrity under 30, Justin Bieber always has time for family.

In Canoga Park, Calif. on Thursday, the chart-topping pop star took his little sister, Jazmyn, 4, out for a trip to the local mall. Joined by their dad, Jeremy, the trio grabbed Subway sandwiches and enjoyed each other's company. Two-year-old Jaxson, who is the star's other half-brother, wasn't in attendance.

PHOTOS: Stars and their siblings

The "Boyfriend" singer, 18, kept it casual in white jeans, a gray T-shirt and high-top sneakers. He covered up with a black beanie and giant sunglasses. Jazmyn, who had a tight grip on her brother's hand, wore a pink butterfly-adorned tee with gingham shorts.

Soaking up the rare moment of quality family time before heading back to his super-packed schedule, Bieber made sure to give thanks for the moment. "Love being a big bro," he tweeted after their outing together.

justin bieber and sister
Singer Justin Bieber (L) and sister Jazmyn Bieber perform in concert for a special acoustic Christmas show at Massey Hall on December 21, 2011 in Toronto, Canada. George Pimentel/WireImage.com

In December 2011, Jazmyn won over her brother's fans when she joined him on stage to help sing his big hit, "Baby" during his hometown concert in Toronto, Canada.

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