Britney Spears debuts at number one with new song'''

 Britney Spears has become the second artist in Billboard history to debut multiple songs at No. 1. The other person is Mariah Carey.
Spears’ latest single, “Hold It Against Me,” is the first song to debut at No. 1 since Ke$ha’s “We R Who We R” debuted in the top spot back in November 2010. Spears’ song has reportedly already been downloaded 411,000 times.
Britney, of course, thanked her fans over Twitter for being the best and supporting what she does.
Are you surprised her new song debuted at No. 1?