In Mackenzie Phillips' new book High on Arrival, she says she had an incestuous affair with her father, Mamas and Papas singer John Phillips. According Michelle Phillips, John's ex-wife and fellow Mamas and Papas singer, that's just not true, The Hollywood Reporter writes. Michelle claims that in 1997, stepdaughter Mackenzie told the entire family that she'd had an affair with John, but called ex-wife Michelle back to say, "You know I'm joking." Michelle went on to excoriate Mackenize, adding, that Mackenzie has experienced "a lot of mental illness," spent 35 years with "a needle stuck up her arm" and was "arrested for heroin and coke just recently." Michelle also said Mackenzie was "jealous of her siblings, who have accomplished a lot and did not become drug addicts."