Avril Lavigne is reportedly experiencing "health issues" and has asked fans to pray for her.
The Complicated singer - who is married to Nickelback frontman Chad Kroeger - hasn't been seen in public since September.
She reportedly told a Twitter fan that she is unwell with an undisclosed problem.
In a direct message to AvrilMusicChart, she wrote: "I feel bad because I haven't been able to say anything to the fans to let them no why I've been absent. (sic)
"I'm not feeling well. I'm having some health issues. So please keep me in your prayers. (sic)"