Los Angeles:Yohane Banda, the biological father of Madonna's adopted son David Banda has voiced concerns over the singer's "shocking" lifestyle. Banda, who gave David up for adoption in 2006, is worried that the 10-year-old is getting caught in the crossfire between Madonna and her former husband Guy Ritchie's "bitter" custody battle over their 15-year-old son Rocco, reports dailymail.co.uk. “Madonna and Guy's custody battle turning bitter and nasty is a huge concern. I'd like to know what's going on behind closed doors and why Rocco wanted to leave his mum and live with his dad like that,” Banda told The Sun newspaper. “What I have heard about Madonna's lifestyle since her divorce from Guy sounds quite shocking,” he added.