Seshollowaterboyz

Seshollowaterboyz (pronounced as "Sesh Hollow Water Boys") (Often stylized as SESHOLLOWATERBOYZ) is a hip hop musical collective based in Los Angeles originally made up of the four underground rappers Bones, Xavier Wulf, Chris Travis and Eddy Baker; the latter three rappers are former members of the disbanded underground hip hop collective Raider Klan. They are widely regarded by fans, critics, and fellow artists as one of the most influential groups of the mid-late 2010's internet hip-hop scene.
While the members have features on each other's songs throughout their discographies, there is only one song with all four members on it together. Titled "Chaos Castle" it is the final track on Xavier Wulf's project "East Memphis Maniac". 
The name of the collective is a mash-up of their self-releasing labels Team Sesh, Hollow Squad. Waterboyz and Healthy Boyz. They have performed at notable venues such as The Observatory in Santa Ana, California on November 13, 2015 and The Novo by Microsoft in Los Angeles on January 30, 2016. Chris Travis left the group due to internal issues around November 2019, eventually dissing some of the former members after parting ways.