They had never won the competition before now – was represented by Salvador Sobral with Amar Pelos Dois, a song written by his own sister
The singer invited his sister to join him for his winner's performance after he stunned the crowd with a whopping 758 points when the public and jury scores were combined.
Meanwhile, former X Factor star Lucie Jones wowed Eurovision fans with a stunning performance in the finale and did her country proud by coming in 15th place with 111 points.
The Welsh singer performed her song Never Give Up on You to huge applause in Kiev, Ukraine and gave the United Kingdom its best hopes of winning in years.
Commentator Graham Norton noted that Lucie won a standing ovation for her "flawless" performance from the crowd.
Fans flocked to social media to gush about the West End star's powerful performance.
"Well done Lucie! So proud. Fingers crossed we do well tonight in the voting!" wrote one fan.
Another added: ""Go Lucie Jones! Brilliant Eurovision performance!"
"Amazing song by Lucie Jones! Loved it! Go GB!" tweeted a third while a fourth added: "Well the UK absolutely slayed! Well done Lucie Jones!"
The stadium was packed with fans from across the world ready to watch the biggest music competition in the world come to a thrilling climax as the 26 finalist nations battled for the trophy including the UK's Lucie Jones and a man dressed in a gorilla costume.