X Ambassadors
Utwory: Jungle (Remix) (& Jay-Z) - Sucker for Pain - Unsteady - Ahead of Myself - Boom

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
Utwory: Hallelujah (Alexandra Burke) - Sorry Seems to Be the Hardest Word (Leona Lewis) - Somewhere Over The Rainbow (Shayne Ward) - That's My Goal (Shayne Ward) - Summertime (Leona Lewis live)

Xanadu (film)
Music from the Motion Picture (1980)
See also: Xanadu (musical), Olivia Newton-John, Cliff Richard & Electric Light Orchestra
Utwory: Xanadu (Olivia Newton-John & Electric Light Orchestra) - I'm Alive (Electric Light Orchestra) - Suspended in Time - Whenever You're Away from Me - Suddenly (Olivia Newton-John & Cliff Richard)

Charli XCX
Charlotte Aitchison
Utwory: I Love It (& Icona Pop) - The Girl, So Confusing (version with Lorde) - Guess (feat. Billie Eilish) - 360 - Von Dutch

XXXTentacion
Utwory: Fuck Love (& Trippie Redd) - Changes - Again (& Noah Cyrus) - Hope - Moonlight