Six teaser videos, each featuring one of the band members, were released in the weeks leading up to the album's release on YouTube. The videos started with various close-up shots of the band members hooked up to medical equipment and speaking.[1] The videos then pan to a heartbeat monitor, play a short clip of the song, and displays the text "What is your Heartbeating for?" Taecyeon's video mentioned the inclusion of seven members in the band,[1] although the seventh member (Jaebeom) exited the group before release of "Heartbeat."
The song's music video was released on November 11, 2009, the day after the song's release.[2] It features dark, moody visuals. The color palette is mostly blacks, greys, and whites. It is the band's first music video to exclude Jaebeom, who left the band a few months before the video's release.[3]
^2PM, 4주 연속 '뮤직뱅크' 정상 '기염' [2PM tops 'Music Bank' for 4 weeks in a row]. Star News (in Korean). December 18, 2009. Archived from the original on May 12, 2021. Retrieved May 12, 2021 – via Naver.
