Slothrust (pronounced "sloth-rust", IPA: [ˈslɔθ.ɹʌst])[1] is an American alternative rock band from Boston, Massachusetts, formed in 2010.

The first single, "Horseshoe Crab", premiered via Noisey on August 10, 2016, was explained as "a dark narrative about love, loss, growing up, depression, and existential anxiety".

When you write songs earlier in your life—depending on where you’re at—the likelihood of them being angsty is higher," Wellbaum explained to Out Magazine, "This record I don’t think is angry in the same way.

[9] Additionally, the band celebrated the new album with a sold-out headline show at Brooklyn's Rough Trade music store/venue on November 1.

[15] April 2021 the band announced their forthcoming fifth studio album, Parallel Timeline, which is set to be released by Dangerbird Records in September 2021.

[18][19] On August 13, the band announced that they were aware of "the current allegation against our previous bassist Kyle," and that he is no longer a part of Slothrust.

[21] On October 20, 2023, Slothrust released the EP I Promise, in conjunction with announcing a tour promoting the upcoming ten-year anniversary of their 2014 album Of Course You Do.