Britney Spears throws joint birthday bash for boys
The 30-year-old singer's boys had their birthdays last week and so she hired the Sky High arcade and trampoline park in Calabasas, California, to celebrate, reported E! Online.
Around 20 of the kids' friends were at the party, as well as Spears, her fiance Jason Trawick and father Jamie. It is not known if the children's father, Kevin Federline, was at the bash.
"Britney was smiling ear-to-ear during the whole party and enjoyed watching her kids play with their friends. It was a really lovely occasion; everyone was in a good mood and in the spirit of the birthday.
"She looked overjoyed and at one point was singing happy birthday to them," a source said.
"Jason and Britney were beaming and couldn't have been more proud of Jayden James and Sean Preston," the source added.