Miley Cyrus has been tapped to headline the World Tour Bushfire Relief charity concert at Melbourne, Australia's Lakeside Stadium on March 13.Sponsored by AgBioEn, the one-night event -- an effort to raise funds to help restore forests, wildlife, and rebuild communities impacted by the Australian wildfires -- will also feature performances by Lil Nas X, the Veronicas and DJ Seb.Tickets go on sale Feb. 25 through ticketek.com.au.