Britney and Kevin reunite for sons` special day

New York: Pop star Britney Spears and her ex-husband Kevin Federline came together for their sons` pre-school graduation. Spears, who formally separated from Federline in 2007, was accompanied by her parents.

Federline arrived separately at their sons` school, but the two met up briefly. Their children - Preston, 4, and Jayden, 3, - were later treated to Happy Meals at the McDonald`s after the ceremony, says people.com quoting a source close to the family. Spears, 28, "was very excited about her boys` graduation and she dressed them up for the festive occasion", added the source. The duo had tied the knot in 2004, but split in late 2006 before finalising their divorce a year later. A custody settlement in 2008 gave Federline, 32, sole custody of the children while Spears was allowed several weekly visits. IANS