The Vamps singer Tristan Evans has tied the knot with his stunning American girlfriend. Drummer Tristan, 31, announced his relationship with American actress Nikki Banner earlier this year having enjoyed a romantic summer in London. In December, their relationship blossomed even more with the loved-up stars taking to social media to announce their joyous baby news as they await the arrival of their first child. Now, the pair are married after tying the knot over the weekend. Tristan's bandmate