Hey Yendo & Rainer are a Czech music duo from Moravia - rapper and lyricist Jan Ševčík (Hey Yendo) from Ludkovice in the Zlín region, and producer Martin Kožucharov (Rainer). Active together since 2020, their sound sits at the crossroads of hyperpop, glitch pop, breakcore and rap. They have released three joint projects: debut Letenky do Psychedel (2023), EP Mindloops (2024) and their second album Jeden úsměv nestačí (2025), their most lyrically and sonically mature work to date.
The duo released a single and music video 'Mám to tak rád', a summer song from the album Jeden úsměv nestačí, whose video was filmed at the Happy Tree near Yendo's hometown of Ludkovice.
Musicserver.cz published an interview with the duo in which Hey Yendo and Rainer explain why they approach the theme of drugs in their lyrics as prevention rather than celebration.
The second album Jeden úsměv nestačí (Bumbum Satori) was released, containing ten compositions and created organically throughout 2024 in Rainer's studio between Zlin and Prague.
The Prague premiere of the album Jeden úsměv nestačí took place on October 10 at Café V lese, where the duo performed an almost ninety-minute solo show.
In November 2025, Hey Yendo & Rainer performed in Vsetin at a double concert with the band Dukla, where they presented the album Jeden úsměv nestačí to the Moravian audience.
