ABBA foursome make rare appearance

Streep said she had been excited by the prospect of singing since she had performed in high school musicals such as "Oklahoma!".

"That was my beginning so it was kind of like coming home to the thing that I loved very, very much," she said.

Asked to name her favorite ABBA song, Streep said:

"I couldn't say. I honestly don't have a favorite song. It's like saying which of your children is your favorite, which of your movies is your favorite. I don't think of it in sports terms like that."

(Editing by Charles Dick)