Sophie Grégoire-Trudeau serenades during MLK tribute

“This was not planned -- trust me“ says Sophie Gregoire-Trudeau before she breaks into song at Martin Luther King tribute at Ottawa City Hall. To read the full story: »»» Subscribe to CBC News to watch more videos: Connect with CBC News Online: For breaking news, video, audio and in-depth coverage: Find CBC News on Facebook: Follow CBC News on Twitter: For breaking news on Twitter: Follow CBC News on Google : CBCNews/posts Follow CBC News on Instagram: Follow CBC News on Pinterest: Follow CBC News on Tumblr: »»»»»»»»»»»»»»»»»» For more than 75 years, CBC News has been the source Canadians turn to, to keep them informed about their communities, their country and their world. Through regional and national programming on multiple platforms, including CBC Television, CBC News Network, CBC Radio, , mobile and on-demand, CBC News and its internationally recognized team of award-winning journalists deliver the breaking stories, the issues, the analyses and the personalities that matter to Canadians.