AOTY...
...Beyonce could get it. Irreplaceable spent most of its weeks @ #1 in '07, plus she had a few other songs I believe.
...Justin, maybe. tail end of ML, WGACA, SL, LS/ITTSK, UTEOT... that's a good many songs...
...Fall Out Boy?
. No, only in my dreams...
...maybe Linkin Park or Maroon 5. Maroon 5 had a #1 album and a #1 single, I beleive. LP had an album this year as well.
...Britney? Probably not...