has dedicated a special video to AIDS charity workers who were killed during Malaysia Airlines crash. On July 17, flight MH17 was shot down over the Ukraine, killing 298 passengers and crew. Some passengers were on the plane to travel to the International AIDS Conference in Melbourne, Australia, where Perry was planning to launch a new promotional video with the United Nations Children's Fund (UNICEF).
The dedicated clip is titled "Unconditionally". On July 21, the singer took to Twitter and Facebook to share a link to the video, along with the message, "A PERSONAL MESSAGE FROM KATY: I worked with UNICEF on this new 'Unconditionally' video in support of the 35 million people living with HIV, especially the young people who often suffer in silence. On Thursday, we lost many people who dedicated their lives to fighting HIV on the Malaysia Airlines flight. They were traveling to the International AIDS Conference, where we were planning on launching this video. Now, I would also like to dedicate this video to them, to honor them, and to all the victims of MH17. #AIDS2014."