"Up We Go" is a song recorded by Canadian electropop artist Lights for her third studio album, Little Machines (2014). Written by Lights in collaboration with songwriter-producer Tawgs Salter, the song was released July 22, 2014 via LIGHTS Music as the lead single from the album. In the United States, it was released to modern rock radio through Warner Bros. Records on September 9, 2014.

The song has enjoyed commercial success - it reached No. 31 on the Billboard Canadian Hot 100 and the top ten on multiple airplay formats, and was certified Gold by Music Canada in January 2015 - and was also met with positive reviews from contemporary music critics, being described as "impossibly catchy."

"Up We Go" is a synthpop song that combines Lights' signature electro-influenced pop production style with "lush" guitars. Jeff Benjamin of fuse described the style as a compromise between the lighter synths of her debut and the grittier electropop territory explored on Siberia. Lyrically, the song is an anthem about persevering through difficult times, with the chorus assuring the listener that "from down this low / It's only up we go".

The song received mostly positive reviews from contemporary music critics. In his "Song of the Day" spotlight featuring "Up We Go", Jeff Benjamin of fuse praised Lights for "[mixing] clever lyrics... with inspiring lyrics about persevering and looking forward to the brighter day" and was also complimentary of the shift in her sound. Also praising the lighter musical approach, Greg Moskovitch of Music Feeds wrote that "[t]he punchy, synth-pop production provides a soaring and glittering soundbed for Poxleitner’s motivational lyrics, which lead into an anthemic, impossibly catchy chorus." British music blog Popjustice rated the song 8/10 and felt the song had the potential to elevate Lights's career to the next level: "Canadian electronic pop expert Lights hasn't yet enjoyed the UK success she deserves... which is a shame, because if this excellent first track from her new album 'Little Machines' is anything to go by she's about to scale new heights."

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