Conversation so far:
Why did Tori Amos leave Epic and sign with Universal Republic?
In May 2008, Tori Amos announced that, due to creative and financial disagreements with Epic Records, she had negotiated an end to her contract with the record label.
How many albums did Tori Amos release with Universal Republic?
Tori Amos released two albums with Universal Records: Abnormally Attracted to Sin and Midwinter Graces.
What was the first album Tori Amos released with Universal Republic?
Abnormally Attracted to Sin was the first album Tori Amos released with Universal Republic.

Question: What was her most popular single?
Self-contained rewrite: What was Tori Amos most popular single?