''Hold It Against Me'' Set to Sell 400K

The following italicized article is from www.billboard.com:

Threatening the reign of Mars' "Grenade" or the return of Perry's "Firework" to No. 1 next week will be the arrival of Britney Spears' "Hold It Against Me," which was released near-simultaneously at radio (Jan. 10) and exclusively at iTunes (Jan. 11). With airplay off to a blazing start and track sales set to exceed 400,000 according to industry sources, a second No. 1 debut for the pop starlet is likely. She previously started at the summit with "3" on the chart dated October 24, 2009.

Source: Billboard