Ireland Baldwin, 19-year-old daughter of Kim Basinger and ex-husband Alec Baldwin, checked into a drug and alcohol treatment center in Malibu over the weekend, RadarOnline reports. According to an insider Baldwin did not enter the facility willingly after "partying non-stop." The teen's parents infamously split when she was 12 years old, with substance abuse reportedly playing a large role in the couple's downfall.