9 June 2015, 14:17
Both girl bands have proven they've got some serious moves as they rocked our #CapitalSTB stage. But whose moves really take the biscuit?
We're already campaigning to make them into one AMAZING super-group, but until then we're forced to pick between Little Mix and Fifth Harmony for who should be crowned dancing queens of our Summertime Ball 2015 With Vodafone. So we need your help...
We've broken the dance routines to 'Worth It' and 'Black Magic' down in to some rather sassy GIFs for you to help make this impossible decision a little easier...
Little Mix - 'Black Magic' (Live At The Summertime Ball 2015)
Fifth Harmony - 'Worth It' (Live At The Summertime Ball 2015)