Who else releases 686890963 remixes of the same song? One or two fine but you will not tell me she released all those remixes with any other intention but to sustain sales. Therefore being a form of chart manipulation just like any last minute remix.
It's common for most pop diva singles and it's NOT the same as featuring a high profile artist last minute so
Receipts:
1) LMFAO - Party Rock Anthem 1.0000 with another version #101, about 1.0930 (combined)
2) Bad Meets Evil - Lighters 1.0165 (combined)
3) Nicki Minaj - Super Bass 0.8021 (combined)
4) Marron 5 ft.Xtina Aguilera - Moves Like Jagger 0.7867
5) Katy Perry - Last Friday Night 0.7862
6) Foster the People - Pumped Up Kicks 0.7706