The 26-year-old British singer took the stage to sing both “Explosions” and her hit song “Anything Could Happen.”
She and Jeremy snuck in a few smooches backstage.
“Thankyou everyone for the lovely messages about #BGT. That was funnnn,” she later tweeted.
Watch Ellie‘s performance below!
WHAT DO YOU THINK of Ellie’s performance on Britain’s Got Talent?