News broke late last night that Andy Hallett, better known as Lorne in Joss Whedon's Angel, passed away Sunday night from heart failure in LA's Cedars-Sinai Hospital, following a five-year battle with heart disease.

Hallett, whose singing demon was one of the best things about the latter years of the Buffy spin-off, died with his father at his side, reports E! Online. The actor had a history of heart problems over the last few years, and had been hospitalized more than once during that period. A funeral service for friends and family is said to be being planned for this weekend.

Hallett was 33 years old.

Angel Star Andy Hallet Dies Of Heart Failure [E! Online]