Miles Benjamin Lenehan (born June 18, 1998), better known as Sewerperson, is a Canadian rapper, songwriter, and producer from Toronto. His music is primarily available on SoundCloud and features a unique blend of emo rap, alternative, and experimental elements. Miles' music is characterized by his melancholic and personal lyrics, which often deal with themes of heartbreak and self-discovery.

Formerly known as 9TAILS, Miles left this persona in December 2018 to focus on his mental health. Miles began releasing music on SoundCloud as Sewerperson in late January 2019, with his first project being the blue EP.

Following the blue EP, Miles then went on to release a series of colored EPs to establish himself as an artist, including grey, maroon, cedar, pink, green, and purple. These — besides green — are only available and exclusive to SoundCloud for the usage of YouTube beats. Because of copyright issues, these projects are unable to be uploaded to streaming services. Miles had shed light under his alter-ego 9TAILS as to why he uses YouTube beats and doesn’t pay for them, in a song titled “clout”, he says:

I been a little stressed up
Some beats sell for 30K, that shit is fucked up (That shit is fucked up)
I get one for free non-profit off of Youtube
And I make it fucking make it slap like it’s a Platinum

Miles' debut album, titled Comet, would be co-produced by recurring collaborator JabariOnTheBeat. Comet’s first two singles, “K” and “B Alright,” were released on SoundCloud in April 2019, with the project being finalized in December 2019. Despite this, the project wouldn’t be available on streaming services until late January 2020. Comet would go on to become a tetralogy series, with Comet 2, Comet 3, and Comet 4.

In addition to his solo work, Miles frequently collaborates with producers like Eric Godlow, branwen, and nevrfall. His lyrics dive into topics such as mental health struggles and addiction. Miles has gained a following due to his honesty and vulnerability, which resonates with listeners.