Britney Spears: Happy Birthday To My Boys!

Britney Spears smiles while leaving the KISS FM radio studio on Thursday (September 15) in London, England.

The 29-year-old pop princess, who recently tweeted that a new remix album will be coming out October 11, is in town to film her “Criminal” video.

Brit also took to her Twitter page to wish her two sons, who turned 5 and 6, a happy b-day.

“Preston Happy Birthday! My little baby is growing up so fast. I love you. Mommy,” she wrote.

“Happy Birthday Jayden! Mommy loves you so much,” she said in another tweet.

FYI: Britney is wearing Koolaburra Veleta booties.