The Conor McGregor song, Sean and Conor Price's X Factor audition, Ed Sheeran's Carpool Karaoke and Coláiste Lurgan taking on Despacito.
They're some of the most-watched videos on YouTube in Ireland in 2017.
The Top 5 is:
No.1 - The Conor McGregor Song
The top spot is taken by 24-year-old teacher Mick Konstantin from Kildare, who's song all about the Notorious in the build-up to the Mayweather/McGregor fight has racked up more than 8 million views!
No.2 - Finbar Furey & Christy Dignam perform "Green Fields of France" on The Late Late Show
Two legends of Irish music sat down for a chat on The Late Late Show but it was when they got their banjo out for a song that scored a viral hit.
No.3 - Sean and Conor Price Perform All Along the Watchtower on The X Factor 2017
The two Irish brothers may not have made the X Factor final, but they blew everyone away with their cover of All Along The Watchtower in their first audition.
No.4 - Coláiste Lurgan Perform Despacito As Gaeilge
What started in Latin America with Luis Fonsi and Daddy Yankee then got some added Justin Bieber, before Colaiste Lurgan had a go at Despacito
No.5 - Ed Sheeran Carpool Karaoke
It's been another huge year for Carpool Karaoke and when Ed Sheeran jumped in James Corden's car, it was always going to be big.
In 7th was the Star Wars trailer filmed in Skellig Michael, Co.Kerry while 10th was Jimmy Kimmel interviewing the family from that incredible viral bat video!
The Top 10 music videos were: