Madonna's DJ/Turntablist from Hard Candy promo tour, DJ Enferno, has posted the following article on his official web site:

Well, for those of you that have been wondering what "project" would pull me away from my club residencies for the past couple of months, here's the official scoop. I'm going on tour with the one and only Madonna. I'm the DJ/Turntablist in Madonna's band for the upcoming "Sticky & Sweet" tour. You can find all the confirmed dates and venues in my schedule. There will be more dates added as they're confirmed. I'm currently in NYC for rehearsals, and the tour will kick off at the end of August. I'm truly blessed to have this opportunity. For concert ticket info, just go to www.madonna.com. To check out some video footage of our recent promo tour, go to www.myspace.com/djenferno. Keep an eye on my schedule for additional Club dates.

Source: http://www.djenferno.com/