Katherine Heigl and her mother
Nancy get stuck in traffic due to road closures for a
Depeche Mode concert in Hollywood on Thursday night (April 23).
The 30-year-old actress plays Izzie Stevens on the popular medical drama
Grey's Anatomy. The show took an unexpected turn this season when her character was diagnosed with cancer.
Katherine is also
working on a new movie,
Five Killers, with Twitter-pro
Ashton Kutcher.