Katharine McPhee is a Boardshorts Burglar

Katharine McPhee begins the filming of You May Not Kiss The Bride in Oahu, Hawaii on Monday (March 16).

She spent the day on set filming a scene where co-star Dave Annable looses his boardshorts while Katharine snags ‘em to tease him. Good thing Dave was wearing some skin-colored underwear!

The 24-year-old pop singer and American Idol finalist makes a jump to the big screen again after playing Harmony in the comedy The House Bunny.

You May Not Kiss The Bride (previously titled Wedlocked) is a romantic comedy about the arranged marriage of a mobster’s daughter and a photographer. Out 2010.

10+ pictures inside of Katharine stealing some shorts…