"3" is the newly released song of Britney Spears. It was produced by Max Martin. The new material is the lead single from Britney's upcoming greatest hits compilation "The Singles Collection".
The compilation set will be released across United States on November 24 and available for purchase in a standard and a packaged box set. "The ultimate fan box set version of 'The Singles Collection' will contain all 29 of her singles, including the new song '3'," it was detailed.
"Each disc will be packaged in its own slip sleeve case with original artwork, and will include an additional b-side or a remix of the track. The collection will include a DVD featuring all of Britney's videos in chronological order. The ultimate fan box set will also include a special booklet featuring iconic images and fun facts about each track."