Britney Spears Throws Arcade Birthday Bash for Sons Sean Preston and Jayden James

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Britney Spears is many things — a talented entertainer, singer and X Factor host — but her first priority is being a mom to sons Sean Preston and Jayden James.

The 31-year-old  planned a fun birthday bash for her boys — Sean turned seven on Friday, and Jayden turned six last Wednesday — over the weekend at an arcade and trampoline park called Sky High in Calabasas, Calif., E! News reports. Spears’ fiance Jason Trawick was along for the ride, plus Spears’ father and sister Jamie Spears.

But the party wasn’t just a family affair. Over 20 kids were there to help Sean and Jayden celebrate their big days, including two tiny internet sensations.

Who enjoyed playing video games and eating cake with the birthday boys? 

Ellen correspondents Sophia Grace, 8, and Rosie, 5, were reportedly both in attendance when it came time sing “Happy Birthday.”

A source close to E! News said, “Britney was smiling ear-to-ear during the whole party and enjoyed watching her kids play with their friends… She looked overjoyed and at one point was singing ‘Happy Birthday’ to them.”

As for the other man in Spears’ life, despite reports that there was trouble in paradise over the summer, the singer and her scruffy beau are still going strong. Trawick proposed to Spears in last December after more than two years of dating.

Spears was previously married to childhood sweetheart Jason Alexander, although their marriage was annulled after just 55 hours in January 2004. She later married her backup dancer Kevin Federline in 2004. However, the couple divorced in 2006.