These girls slayed their performance at last year's Ball and we can't wait to see them do it again!
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13 Reasons The #CapitalSTB Is Going To Be The HOTTEST Gig Of The Summer

3. These girls slayed their performance at last year's Ball and we can't wait to see them do it again!
Expect amazing dance routines, sexy outfits, and a full on burst of energy as this pop power four-piece take to the stage. Picture: PA