Concert footage of the closing line-up for Love Parade including artists Tiesto, Monika Kruse, and Tiefswartz. According to the footage and the schedule, Tiesto took the stage at 5:00 PM. As this footage is being taken, people are dying on the ramp. (NSFW warning for some shirtless shots of women in the crowd.)
This German documentary focuses on the aftermath of the disaster but particularly on Duisburg mayor Adolf Sauerland and the parents of victim Fabian Seitz. (This video does not have subtitles so you will need to use YouTube Translate, which is — to say the least — not the best translation tool.)
This page featuring concert information is specifically for the 2010 Love Parade. The most recent information regarding the festivities and ensuing tragedy is at the top, so as you scroll down you can see where the typical information about schedules, travel details, and lists of those performing changed into updates on the disaster.