One Direction's Louis Tomlinson & Niall Horan Party with Fifth Harmony

One Direction‘s Niall Horan and Louis Tomlinson join Fifth Harmony – Ally Brooke Hernandez, Normani Kordei, Dinah Jane Hansen, Camila Cabello, and Lauren Jauregui – at the Britain’s Got Talent finale on Sunday evening (May 31) in London, England.

“always good to see you boys !! @NiallOfficial @Louis_Tomlinson see you at capital ball :) ❤️xx” Fifth Harmony tweeted.

Later that evening, the guys were seen at the after party with the girl band.

Louis was seen leaving the party with Lauren late into the evening – he fairly recently split with his girlfriend Eleanor Calder and fans went nuts seeing Louis and Lauren together.