Bambie Thug was crowned champion on Friday night's Late Late Show Eurosong Special and will now represent Ireland at the Eurovision Song Contest in Malmö, Sweden, in May.
The winner was chosen by the combined votes of the public phone vote, an international jury and a national jury.
The 30-year-old Cork native, whose real name is Bambie Ray Robinson, will represent Ireland with their genre-shifting track Doomsday Blue.
The non-binary artist's music has been described by critics as electro-rap, confrontational performance art and effervescent, late-night goth pop.
Last year, Sweden won the Eurovision Song Contest for a record-equalling seventh time as the country's 2012 winner, Loreen, took home the glass microphone trophy once again with the song Tattoo. The win means that Sweden now ties with Ireland for the most Eurovision victories.
The Eurovision Song Contest 2024 semi-finals will take place on 7 and 9 May, with the grand final following on 11 May.
The story of the night:
Isabella Kearney - Let Me Be The Fire
First up was Irish-Australian singer-songwriter Isabella Kearney with her uptempo song Let Me Be The Fire.
Born in Sydney, Kearney grew up in Donegal, where her mum is from, and Northern Ireland, before moving to Australia when she was nine. Speaking ahead of her performance, she said: "It would mean the world to me represent Ireland at Eurovision, I want to make my mum proud."
"I could cry right now, it's a very emotional experience. It would mean everything," she later added.
Bambie Thug - Doomsday Blue
Second to the stage was Cork native Bambie Thug with their track Doomsday Blue.
The non-binary artist said the song is about "being overlooked, about having your potential ignored". Before their stomper of a performance, they said the Eurovision is "such a giant platform and can open a lot of doors".
Describing their music as "ouija pop", Bambie Thug added that the song was "theatrical and I'm theatrical!
JyellowL ft Toshín - Judas
Next it was the turn of Irish rapper and hip-hop artist JyellowL, whose song Judas features the phenomenal vocal talents of Toshín.
The artist said he was "a big fan of Eurovision" and said it's "such a massive platform to get your music recognised". He added: "I'd be so proud to carry the flag on my back and bring it home."
The rap artist later said it felt "amazing" to perform his track, "I felt like I was a kid in a playground", while Toshín added of their on-stage chemistry: "We've built such a great relationship, it's all banter and fun!"
Ailsha - Go Tobann
Wicklow rocker Ailsha was the fourth act of the night with her explosive Celtic-metal track Go Tobann.
Ailsha, who wrote the song along with her brother, described it to host Patrick Kielty simply in three words: "Gaelige, chaos, craic".
She didn't disappoint on any of those fronts as the high-energy performance featuring impressive staging brought the house down.
Next in Line - Love Like Us
The penultimate act, new Irish boyband Next in Line, took to the stage next to perform their entry Love Like Us.
The band, who said it would be a "dream come true" to represent Ireland at Eurovision, put in a polished performance featuring impeccable harmonies.
Erica-Cody - Love Me Like I Do
The final act of the night was pop and R&B singer Erica-Cody with her track Love Me Like I Do.
The Dublin star said the track is for everyone, but particularly for the single girls. Speaking about the lack of diversity when she was growing up, Erica said it would be a huge honour to represent Ireland on such a huge stage like the Eurovision.
"I think it's about time we took our crown back", she added.
