"Ex's & Oh's" is a song recorded by American singer and songwriter Elle King for her debut studio album, Love Stuff (2015). It was released September 23, 2014 as King's debut solo single and the album's lead single via RCA Records. The song achieved success in the rock genre, peaking at number 1 on the Billboard Hot Rock Songs chart, and later crossed over to adult pop radio.

In June 2015, "Ex's & Oh's" was certified Gold by Music Canada; it has since been certified double Platinum. "Ex's & Oh's" reached the top of the Alternative Songs chart in September 2015, becoming only the second song by a solo female to reach the top since 1996 after Lorde achieved the feat in 2013 with "Royals". The song also became King's first top-10 hit on the Billboard Hot 100. It also charted moderately well internationally, attaining top-10 peaks in Australia, Austria, and New Zealand, amongst others.

"Ex's & Oh's" received two nominations at the 58th Grammy Awards: Best Rock Performance and Best Rock Song.

"Ex's & Oh's" is an uptempo pop rock song that blends elements of alternative rock,blues rock and Southern rock. The song was written by Elle King with the song's producer, Dave Bassett, and King credits him with helping her shape the sound of the album. Its instrumentation includes the banjo, guitar and drums and is influenced by country music. The song's lyrics describe the narrator's past relationships with needy men and her tendency to "[chew] men up and eat them." King describes how her ex-boyfriends are like ghosts; they always want to come back to her. She also explains how her feelings toward her boyfriends quickly shift and her carelessness over the relationship. According to musicnotes.com, the song is written in E minor.

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