Giovanni Grassi, professionally known as Endo, is an American emo rap and hip-hop artist from New Jersey. Born in 2009, he began releasing music independently under the name endo (formerly endobrine) in 2024,developing a sound influenced by the emotional and melodic side of hip-hop.

His music focuses on personal experiences, relationships, emotions, and darker themes, blending melodic vocals with elements of emo rap and modern hip-hop. His first official album was released in August 2026, marking the beginning of his officially released catalog.

endo continues to release music independently across major streaming platforms while developing his sound and identity as an artist.