Lily Allen on Suicide Watch!

Somebody alert the authorities; Lily Allen is on the brink of attempting suicide!

Allen’s half-sister, Sarah Owen (who shares the same mother as Lily), recently granted an interview to Grazia magazine and revealed that the “Smile” singer, 24, tried to take her own life when she was a teenager.

“Aged 18, she tried to slit her wrists when her first relationship ended and she ended up in The Priory [rehab clinic] for four weeks,” Owen, 29, told the publication. “I had a big gang of friends but Lily was more of a loner. She had no one to talk to about getting her first period or breaking up with her first boyfriend. Would it have been different if we’d been closer? Probably. My relationship with Lily back then was strained—I was a crazy teenager, and that must have affected Lily.”

A suicide attempt over a break-up? Could history repeat itself in the coming days?

Consider: Allen has been experiencing wild mood swings lately.

In September her Facebook profile bore the somber message, “Lily has had enough and feels like killing herself.”

Most distressingly, Allen broke things off this week with her boyfriend, art dealer Jay Jopling.