PM's wife Sophie surprises with impromptu song

At an event to mark Martin Luther King Day, Sophie Gregoire-Trudeau breaks out in song, which she wrote for her daughter Ella Grace. Subscribe to CTV News to watch more videos:    / ctvnews   Connect with CTV News: For the latest news visit: http://www.ctvnews.ca/ For a full video offering visit the CTV News Network: http://www.ctvnews.ca/video CTV News on Facebook:   / ctvnews   CTV News on Twitter:   / ctvnews   Watch CTV News on Twitter:   / watchctvnews   CTV News on Google+: https://plus.google.com/+CTVNews/posts CTV News on Instagram:   / ctvnews   CTV News on Pinterest:   / ctvnews   CTV News on Vine: https://vine.co/u/1134196353757794304 --- CTV News is Canada's most-watched news organization both locally and nationally, and has a network of national, international, and local news operations.