Conversation so far:
Can you provide me with a little background information on Avenged Sevenfold's style and influences?
Avenged Sevenfold are considered a heavy metal, hard rock and metal core band. They cite Metallica, Elton John, Leonard Cohen, Dream Theater, Def Leppard, The Beatles, Black Sabbath as influences.
Are there Avenged Sevenfold hit singles?
All singles from Avenged Sevenfold's album Nightmare charted in the United States.

Question: Which ones were the most popular?
Self-contained rewrite: Which Avenged Sevenfold singles were the most popular?