as someone that has yo-yoed back and boforth, what makes this on different? a matter of learning the maintenance. and they have a program for that. for janet jackson, 2011 has been a year of blank? >> a great deal of happiness, some sadness. >> reporter: like reliving the trauma of her brother's death. during the trial of conrad murray, who is now serving a four-year jail sentence. when it came to the trial, you tweeted out, "justice has been served." what did you mean by that? >> exactly that. even though it doesn't bring my brother back, that would be the ultimate, but the best was done at that moment. >> reporter: it must be terrible, sitting in that courtroom. >> it was difficult on all of us. it wasn't easy, sitting there, every single day. >> reporter: but 2011 has also been a year of new beginnings. ♪ control >> reporter: and an international concert tour. janet jackson also guards the memory of the brother with whom she was so close. what do you want your brother's legacy to be? >> just so many things. his love for children, his love for people. his l