"Push It" is a song by American hip hop group Salt-N-Pepa. It was first released as the B-side of the "Tramp" single in 1987. Then released by Next Plateau and London Records, it peaked at number 19 on the US Billboard Hot 100 in early 1988 and, after initially peaking at number 41 in the UK, it re-entered the charts after the group performed the track at Nelson Mandela's 70th birthday concert, eventually peaking at number two in the UK in July 1988. From Wikipedia
