Sales for '4' jump after Beyonce announced her pregnancy on the 2011 MTV Video Music Awards...
From Billboard,
Obvious gainer thanks to the VMA show is Beyonce, who announced she was pregnant during her performance of "Love On Top." Her "4" album returns to the top 10 on the Billboard 200 with 39,000 (jumping 12-7; up 87%) and "Love" debuts at No. 10 on Digital Songs with 113,000 (up 803%). This marks the first time the "4" album has posted a weekly sales increase since its arrival.
