News Liza Minnelli Checks Into Rehab By Rosalyn Oshmyansky 4:43 PM PDT, March 18, 2015 Now Playing hh:mm:ss Liza Minelli is seeking help.The 69-year-old singer-actress has checked into rehab, her rep confirmed to ET."Liza Minnelli has valiantly battled substance abuse over the years and whenever she has needed to seek treatment she has done so," her rep said in a statement.WATCH: Liza and Her Siblings Reunite for 'Wizard of Oz' TributeMinnelli has been open about her past trips to rehab, including a stint in 2004, and her battle with alcoholism."This is a disease, and the sooner we know that the better," she told James Lipton on a 2006 episode of Inside the Actors Studio. "It's a disease you don't have to succumb to."NEWS: Adrian Grenier Examines Drug Abuse in HollywoodThe Cabaret star's rep said that "she is currently making excellent progress at an undisclosed facility."Watch the video below to see John Travolta urge action on Hollywood's drug abuse.