"Here It Goes Again" is an alternative rock/power pop song by OK Go, and is the third released single (the fifth including radio-only singles) from the album Oh No. It also appears on the compilation album Now 23. It remains the band's only single to chart on the Billboard Hot 100, where it entered the Top 40 at #38. Featuring the band dancing on treadmills, the video became a staple on YouTube; it was one of the most watched videos, with over 52 million views, until it was removed from their channel. In addition, the single peaked at #36 in the UK Singles Chart on October 1, 2006, hence marking their second UK Top 40 single and their third UK Top 75 single. It was also featured on the video game Rock Band; according to MTV Games's Paul McGooyer, this helped to spur further interest in the band.
Its sole b-side, "The Lovecats", a cover of The Cure's single was previously released on the band's Do What You Want EP and the single "A Million Ways". An alternate version was nicknamed "UK Surf". The song was featured on the season 6 premiere of the American comedy series, Scrubs.
OK Go performing the song on treadmills in the music video for "Here It Goes Again".
The music video of the song is an elaborate performance of the band dancing on treadmills in a single continuous take. Choreographed by Trish Sie and directed by Sie and the band, it took a total of seventeen attempts to complete the video. As in the band's video for "A Million Ways", Tim Nordwind lip-syncs the lead vocals instead of Damian Kulash, following the format from the dance choreographed for the song "C-C-C-Cinnamon Lips", which Tim sings. The video debuted on YouTube on July 31, 2006. As of March 2010[update], it had been viewed over 50 million times, but the video was taken down and reposted and now currently has over 20 million views. It premiered on VH1's Top 20 Countdown that same day. OK Go performed the dance routine live at the 2006 MTV Video Music Awards.
During the summer of 2006, the band recorded a slower version of Here It Goes Again "in their attic". This version, dubbed "UK Surf" or the "UK Surf Mix", was released on iTunes in the UK the same day as the single. After being featured in the January 2007 Grey's Anatomy episode "Great Expectations", it was released in the US through iTunes on February 1, 2007 as a digital download.