Almost all songs on this kind (a soloist with a guitar) have a certain heartwarming appeal, ever since Nicolestarted it in 1982.
And before Nicole, there was Norway's Åse Kleveland, whose 1966 entry placed 3rd and was Norway's highest ranking entry until they won for the first time in 1985.
Iceland's 2011 entry was "Coming Home" by a band called Sjonni's Friends, which only formed because the writer of the song, Sjonni Brink, died days before he was meant to perform it in the Icelandic national selection. Sjonni's musician friends, believing the song should stay in the competition, formed a tribute band and took the song all the way to Eurovision (it finished 20th).
Loreen: I want to say that I love you so much, thank you for believing in me, I wouldn't be able to do this without you guys. Thank you so very much. I love you for real, I do. This [the trophy] isn't just mine, this is ours. This is ours together. Really.
It should be noted that she absolutely adored the Russian grannies that year, who ended up in second place.
Malta's entry for 2013 was Gianluca Bezzina, a Hospital Hottie with an exceptionally sweet song called "Tomorrow", detailing the love story between IT Guy Jeremy and his Manic Pixie Dream Girl. The song (reminiscent of Jason Mraz's "I'm Yours) placed 8th in the finals and was Malta's most commercially successful.
In 2014, during the 2nd Semifinal, Austria's Conchita Wurst was the favorite to get into the final. Nine qualifying countries later, Austria still hadn't been announced for the final so the audience started cheering "Austria" before breaking out in very loud cheer when she was finally called as the 10th and final entry to perform in the final. For context on why this was unique — she performs in a gorgeous Pimped-Out Dress, elaborate makeup, and a full beard. Her completely heartfelt "Thank you! Thank you so much!" right after her performance was also a major moment of heartwarming, and she cried tears of joy backstage, saying she wanted to go right back. She kept on crying with joy as one country after the other announced L'Autriche, douze points, all the way to victory.
Iceland 2014 has a children's punk rock band called Pollapönk performing a song called "No Prejudice," which, as Graham Norton noted, should have been wildly annoying on paper, but was full of energy, sunshine, happiness, and bearded Teletubbies in technicolor suits.
Graham Norton: (after their performance) Oh come on, United Kingdom! That was fun! I feltyouresisting.
All the contestants at the 2014 final joining 2013's winner Emmelie de Forest on stage during her performance.
According to these reporters who went to the 2015 final, after each time Australia was awarded major points by the other countries, Guy Sebastian would head over to the country's tables and thank them.
The day before the 2015 final, Ireland had a historic referendum on legalising gay marriage. The vote passed and Ireland received a massive applause from the crowd in Vienna.
As soon as Jamala was announced the winner of the 2016 contest, Bulgarian representative Poli Genova darted to the Ukrainian delegation in the green room to hug and congratulate her.
Dutch 2016 representative Douwe Bob singing together with other artists in his own Stockholm bar.
In January 2016 Terry Wogan who had commentated United Kingdom for over 30 years died. At the contest his successor Graham Norton toasted him at song nine along with many in the UK.
Earlier that night she had announced her pregnancy through the introductory postcard before her performance.
In 2017, Portugal sent Salvador Sobral, a singer with a hipster hairstyle and a very delicate health. When Sobral won the Portuguese selection with an old-timey sounding ballad "Amar Pelos Dios" (love for both), he had to have hernia and heart operations, couldn't partake in overseas promotion gigs, and had to miss technical rehearsals, where his sister Luisa, also the song's writer, performed on his behalf. When Salvador was able to perform, he became the first Portuguese song in the final in 7 years and many tastemakers thought that he could be their first top 5 placing at the 47th attempt - and indeed, not only did he place in the top five, Sobral ended up winning the whole thing, Portugal's first Eurovision winner ever. And making it even more heartwarming, he then performed the winner's reprise as a duet with his sister.
He also wore a jumper reading "SOS refugees", to lobby for an improved application system for the benefit of asylum seekers, so that they don't have to require an application form, at the qualifiers press conference .
During the 2017 jury voting, the Israeli spokesman, Ofer Nachshon, announced that the IBA (the now-former broadcaster of the contest in Israel) would be shutting down right after the final. The hosts in Ukraine and the audience gave him a warm round of applause as he said he hoped to see Israel perform again in the future.
The aforementioned Nicole remarked in the BBC documentary 60 Years of Eurovision that, to her, the most meaningful moment of the evening was seeing Israel award Germany twelve points, considering it as something of an olive branch (especially since the song was about peace and bringing an end to war).
In 1998, Dana International was chosen to represent Israel with "Diva" - the first openly transgender participant in Eurovision history. Amidst death threats and scorn from ultra-conservative countries, not only did she perform as planned, she earned Israel their third win.
The 1997 winner from the UK, "Love Shine a Light" by Katrina and the Waves. Aside from the song being a triumphant message of hope, on a meta level, it was a rise back to relevance by a band that hadn't had a major hit for twelve years. Having nothing to lose, Katrina Leskanich put all her in energy in selling the song, and her efforts won Eurovision for the UK (and, twenty years later, it remains their most recent win).
Dana performing for Ireland in 1970. With the nation suffering during The Troubles, her performance - simple and charming - was a happy break in the drama. She won, and received an enormous outpouring of support upon her return to Ireland.