Erm... we need to take a moment to appreciate just how much Tristan KILLED IT.

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Little Mix, Ariana, Nick Jonas & Loads More: The MUST-SEE Live Pics From Capital's Summertime Ball 2016

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See the full gallery: Little Mix, Ariana, Nick Jonas & Loads More: The MUST-SEE Live Pics From Capital's Summertime Ball 2016