premise: Sledgehammer was first performed live in 2014.
hypothesis: Sledgehammer (Fifth Harmony song) . They first performed the song live at the 2014 MTV Europe Music Awards pre-show and would make later appearances on Good Morning America , Access Hollywood Live , The Talk , the Today Show and The Ellen DeGeneres Show . Sledgehammer (Peter Gabriel song) . It hit No. 1 in Canada on 21 July 1986 , where it spent four weeks ; No. 1 on the Billboard Hot 100 chart in the United States on 26 July 1986 ; and No. 4 on the UK Singles Chart , thanks in part to a popular and influential music video .