Britney Spears Celebrates Sean Preston's Graduation

Posted Monday June 20, 2011 9:44 AM GMT

Celebrating her son Sean Preston’s graduation, Britney Spears was spotted at the ceremony in Los Angeles on Friday (June 17).

The “Baby One More Time” songstress donned a grey striped dress teamed with a matching grey cardigan as she headed inside.

Along for the ride were Brit’s boyfriend Jason Trawick, as well as her ex-husband Kevin Federline and his preggers girlfriend Victoria Prince.

On Thursday night, Britney began her fabulous Femme Fatale tour in Sacramento, California with Nicki Minaj as her opening act.

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