@britneyspears/Instagram

Britney Spears celebrated her sons' birthdays over the weekend with a skateboard party.

The 32-year-old singer posted a photo of her boys, Sean Preston Federline and Jayden Federline, at their birthday celebration Saturday.

"Happy Birthday to my two little baby boys," she captioned the Instagram post featuring the sons she had with ex-husband Kevin Federline. "They are growing up too fast!!!"

The boys posed in plaid shirts, safety pads and helmets in front of a table of treats that included skateboard-themed cake pops.

Both have September birthdays, though they were born almost a year apart. Jayden turned 8 on Sept. 12, while his older brother, Sean Preston, turned 9 on Sept. 14.

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Spending time with her kids is no doubt boosting Spears' spirits following her breakup from boyfriend David Lucado.

The "Toxic" singer announced their split after 17 months during her Las Vegas Show last month.

Talking about the breakup and dating again, Spears told "Good Morning America" correspondent Michael Strahan, "I think everything happens for a reason. And I'm actually really blessed right now."