Britney fan Rodolfo took footage from a variety of YouTube videos of Britney's performances of 'Circus' in 'The Circus Starring Britney Spears' tour and this video is the outcome- the seamless editing is amazing!

Britney is adding two more dates to her U.S. tour- in New York and San Diego!

New York City- Madison Square Garden Night 3 - AUGUST 26th
ON SALE 7/17 at 9am

San Diego - San Diego Sports Arena - SEPTEMBER 24th
ON SALE 7/17 at 10am (link TBA)

Want even more motivation to push 'Radar' to the top of the charts?  If Radar debuts in the Top 40 next week, Britney will have the most Top 40 debuting singles of any artist this decade. More information on requesting 'Radar' is here - Britney's fans are the best in the world and we know they can make this happen!

From Ask Billboard:

Should Britney Spears' "Radar" debut on the Mainstream Top 40 radio airplay chart next week, which looks likely based on the format's building chart, Spears will take sole ownership of most entries on the tally this decade. She's currently tied with Nelly, each with 20 charted titles in that span.

As we wait to confirm that feat, here is a look at the hefty sales figures of Spears' charted albums on the Billboard 200, according to Nielsen SoundScan:

10,534,000, "...Baby One More Time," 1999 (No. 1, six weeks)
9,184,000, "Oops!...I Did It Again," 2000 (No. 1, one week)
4,336,000, "Britney," 2001 (No. 1, one week)
2,970,000, "In the Zone," 2003 (No. 1, one week)
1,575,000, "Circus," 2008 (No. 1, one week)
1,347,000, "Greatest Hits: My Prerogative," 2004 (No. 4)
967,000, "Blackout," 2007 (No. 2)
100,000, "B in the Mix: The Remixes," 2005 (No. 134)