Madonna took a break last night from sparring with Russian homophobes to put in an apparently spontaneous appearance at Miami's Ultra Music Festival. She looked fantastic. She did no singing. She swore her lifelong fealty to electronic music and asked if everyone present had "seen Molly." (Madge's new album is called MDNA, and "Molly's" the street name for MDMA. Wit!) Then she introduced the DJ Avicii, and proceeded to dance to a remix of her own song. Watch AFTER THE JUMP ...