Posted December 29, 200816 yr Britney #1 on Top 40 radio breaks another record -------------------------------------------------------------------------------- Britney Spears' "Womanizer" jumps from No. 2 to No. 1 on the Mainstream Top 40 radio chart for her first No. 1 on the tally since "Toxic" in 2004. The new song marks her fourth visit to the summit. She also reigned with debut single "Baby One More Time" in 1999 and "Oops! . . . I Did It Again" in 2000. Spears leads all female artists for most overall Mainstream Top 40 chart entries since 2000 with 19 and ranks second only to Nelly (with 20) among all artists in that span. Britney Spears, Circus, 196,000. The album drops from #2 to #4 in its third week. Sales dipped by 2% compared to last week. Three songs from the album are listed on Hot Digital Songs, topped by "Circus," which dips to #3 after two weeks on top. Source: Billboard