"#1 hit"
1. Definition:
(n.) the most popular song in the U.S.
Examples:
Britney Spears has the #1 song right now.
Britney Spears has the #1 hit right now.
(n.) the most popular song in the U.S.
Britney Spears has the #1 song right now.
Britney Spears has the #1 hit right now.