Britney and Mariah break records this week in the US
Mariah Carey's "Obsessed", debuted at #11 this and it became Carey's fortieth entry on the Hot 100, making her just the eighth woman in the chart's history to make 40 or more appearances.
Another interesting fact - Cyrus/Montana have 28 entries on the Hot 100 chart.
This week, Britney Spears official becomes the artist with most Mainstream Top 40 hits of any act in this decade, as "Radar" debuts on the chart at #35. This breaks Britney's tie with Nelly.
