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