The moment came after the singer wrapped up the US leg of his tour
Flowers then stuck around for a duet of Sheeran's own hit 'Castle On The Hill'
English singer-songwriter Calum Scott will join Sheeran on the tour
A hefty bill to the tax man....
The record will also feature songs written by Ed Sheeran and Shawn Mendes
The event will mark the 20th anniversary of the Portuguese festival next June.
Ed Sheeran and Dua Lipa were also respectively crowned as the UK's top UK male and female artist globally.
The noughties boy band also teamed up with support act Hanson
“I’ve had friends die without wills, and no one knows what to do.”
The Ipswich Town Football Club team sang 'Perfect' to him in their locker room