X Factor
Joe McElderry, Leon Jackson, Same Difference, The X Factor Finalists, Alexandra Burke, Steve Brookstein, Shayne Ward, Leona Lewis, Susan Boyle, Jedward, Maria Lawson & Cher Lloyd
Songs: Hallelujah (Alexandra Burke) - A Moment Like This (Leona Lewis) - Somewhere Over The Rainbow (Shayne Ward) - Heroes (The X Factor Finalists) - Summertime (Leona Lewis live)

Xanadu (film)
Soundtrack (1980)
Siehe auch: Xanadu (musical), Olivia Newton-John, Cliff Richard & Electric Light Orchestra
Songs: Suddenly (Olivia Newton-John & Cliff Richard) - Xanadu (Olivia Newton-John & Electric Light Orchestra) - All Over the World (Electric Light Orchestra) - I'm Alive (Electric Light Orchestra) - Suspended in Time

Charli XCX
Charlotte Aitchison
Songs: I Love It (& Icona Pop) - Sympathy Is a Knife - Boom Clap (The Fault In Our Stars) - Guess (feat. Billie Eilish) - Apple

Xutos & Pontapés
Songs: O Homem do Leme - A minha casinha - Não sou o Único - Contentores

XXXTentacion
Songs: Hope - Moonlight - Falling Down (& Lil Peep) - Sad! - Look at Me!