4th Dimension (song)

"4th Dimension" is a song by American hip hop duo Kids See Ghosts, composed of the rappers Kanye West and Kid Cudi, from their first album Kids See Ghosts (2018). The song features Louis Prima who was credited as a co-writer due to his work being sampled prominently. The song was produced by West, with additional production from Mike Dean and Noah Goldstein. The song samples Prima's "What Will Santa Claus Say (When He Finds Everybody Swingin')" and Shirley Ann Lee's "Someday". Lyrically, the song features Kids See Ghosts presenting their thoughts to stop themselves from becoming worried.

The song received widespread acclaim from music critics who praised the sampling of "What Will Santa Claus Say (When He Finds Everybody Swingin')". Some commended the production, while a few critics cited "4th Dimension" as being among Kids See Ghosts' highlights. In 2018, the song debuted at number 42 on the US Billboard Hot 100, marking the first time a track with Prima appeared on the Hot 100 since 1961 and thus breaking Bobby Helms' record. The song reached the top 50 in Australia, Canada, Ireland, and the United Kingdom. It has since been certified gold in the United States by the Recording Industry Association of America (RIAA).

On June 26, 2020, "4th Dimension" was used as the soundtrack for a preview of Kids See Ghosts' Takashi Murakami–directed animated show of the same name. The clip features the characters Kanye Bear and Kid Fox, who are voiced by West and Kid Cudi, respectively. In the clip, the characters are sucked into a different dimension, where they successfully manage to escape a cemetery. Kids See Ghosts performed the song live at the 2018 Camp Flog Gnaw Carnival.