Britney Spears' new single, "Hold It Against Me" debuted at Number One on Billboard's Hot 100 Singles chart and sold 411,000 digital singles in one week after being released exclusively on iTunes, breaking a record previously held by Taylor Swift.
Spears is also only the second artist in Billboard history to debut multiple songs at No. 1, Mariah Carey was the first artist to earn that honor.
Most surprising, is the fact that the single found so much success without any promotion by the singer herself. The single also found a number one spot in 19 other countries, including Australia, Belgium, Japan, Canada, Switzerland, France and Ireland.
"Seriously, I have the best fans ever," Spears wrote on Twitter after making her first-day sales record. "I love you all so much! Everything I do is for you!"
The 29-year-old mother of two also confirmed on Twitter that she is currently working on the "Hold It Against Me" music video with director Jonas Akerlund, who previously directed Lady Gaga's "Telephone" music video and has also worked with Madonna, Moby, Christina Aguilera and directed Prodigy's most controversial music video.
Spears, who has sold more than 100 million records, launched a successful "Circus" tour and recently guest-starred on Glee, earning the FOX musical sitcom its highest ratings yet.
The new album is set for release in March 2011, by the end of Sony's fiscal year. Listen to Britney Spears' single, "Hold It Against Me," below.