Thousands of fans from around the world proved there's no line on U2's horizon as they logged on to the internet to hear the band's new single receive its first airplay on 2fm yesterday.
RTE said it had been inundated with calls, texts and e-mails from fans in Chile, Brazil, Spain, Italy, France, Germany and Iceland, and reported a spike in online listeners when new single 'Get On Your Boots' was played by Dave Fanning.
The track is listed at number six on their new album, 'No Line on the Horizon', which will be released on February 27 in Ireland, March 2 in the UK, and March 3 in the US.
'Get On Your Boots' will be released as a digital download on February 15 and will be in shops on February 16.
It was also uploaded onto the band's website, U2.com, to allow fans an early pre-release listen.
The band followed tradition by choosing long-time friend Fanning to give the single its first airplay -- 30 years after he championed the band when they were starting out and played their very first vinyl single on air.
The foursome have reached unprecedented heights of stardom since then, as their performance at Sunday's pre-inauguration concert for President-elect Barack Obama in Washington DC shows.
Through decades of era-defining albums, Dave Fanning has always been granted the exclusive right of first air play of U2's singles and is known as the band's good luck charm.
"It's become a kind of tradition I guess," said Fanning.
The critical and fan reaction to the new single was mixed.
Rob Brunner, on 'Entertainment Weekly' said that while the new single started with little promise, it improved towards the middle of the song.
"After just a few listens 'Get on Your Boots' doesn't seem like one of U2's all-time great songs, but it's still interesting -- and different -- enough to make me pretty excited to hear the whole album," he wrote.
Author Neil McCormick, who wrote the book 'I Was Bono's Doppelganger', about his experience trying to be a pop star, hailed the single as "fantastic".
"It is bright, smart and energised, with a funky, rock 'n' roll rhythmic bounce," he said.
Fans on YouTube were mixed, with many saying it was a combination of all of U2's previous work.
"It's a mixture of everything U2 has done. I hear the riff of 'The Fly', the passion of 'War', the experimentation of 'Pop', the rawness of 'Vertigo'," he said.
Another said: "A bit underwhelming. The Led Zep bit near the end is OK but otherwise, kind of a letdown based on how excited I was over this new U2 song.
"By comparison, the first time I heard 'The Fly' in 1991, I was both terrified and excited."