PHThe 'Complicated' hitmaker has been through the "worst years" of her life after struggling with the debilitating condition but is thankful she's making her return to music and will release new single 'Head Above Water' on September 19.
She wrote in a note on her website: "I spent the last few years at home sick fighting Lyme Disease. Those were the worst years of my life as I went through both physical and emotional battles...
"Thank you for waiting so patiently as I fought through and still continue to fight, the battle of my lifetime. The first song I am choosing to release is called 'Head Above Water'.
#WelcomeBackBabe
She wrote in a note on her website: "I spent the last few years at home sick fighting Lyme Disease. Those were the worst years of my life as I went through both physical and emotional battles...
"Thank you for waiting so patiently as I fought through and still continue to fight, the battle of my lifetime. The first song I am choosing to release is called 'Head Above Water'.
#WelcomeBackBabe