United Kingdom, Feb. 3 -- Lily Allen was "terrified" about how her revenge album West End Girl would be received.

The 40-year-old singer addressed the breakdown of her marriage to Stranger Things star David Harbour in the acclaimed record that was released last October but has confessed that she was concerned about how the "angry" album would go down with the public.

In an interview with ELLE UK, Lily said: "I was processing things that were happening at quite a traumatic period of time. I don't think that it's a particularly self-aware record. It's a really angry record. And it's a lot more about rage directed towards other people. It's not really about self-reflection.

"When I wrote this album, I spent about eight months being absolu...