"I Won't Let You Down" is a single by the alternative band OK Go that was released as a single in December 8, 2014 and is part of their album Hungry Ghosts. The video for the song was released on October 27, 2014. Like many of the band's past videos, the video is a one shot take recorded in double time showing the band members and several hundred dancers on personal transportation devices performing intricate choreographed routines while filmed by a camera on a multirotor aerial drone.

The song has a very strong disco influence; band frontman Damian Kulash said that the disco influence came as they were toying around with the beat of the song and they hit upon a sound, evoking the style of Jackson Five and Diana Ross, at which point, "we knew we had something worth chasing". The song was released as a single on December 8, 2014. The song was featured in Step Up: All In.

The video for "I Won't Let You Down" was released on October 27, 2014, premiering on The Today Show. Similar to many of the band's past videos, the video is a continuous one-shot music video. The band members perform the video while riding Honda UNI-CUBs, personal mobility units that are controlled by the rider by simply shifting their weight on the device. The group performs a routine within a warehouse before moving outside for larger choreographed routines with a number of additional riders and dancers dressed in traditional Japanese school uniforms and using colored umbrella props. The video was filmed on a camera mounted to a octocopter drone, which allows for ground-level and bird's-eye-view shots during these routines, including a final high-altitude (700m) pan of the surrounding landscape. The Japanese electropop group Perfume also make a cameo at the start of the video.

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