"I Want It All" is the second single from the Walt Disney Pictures film, High School Musical 3: Senior Year, and is the third track on the High School Musical 3 soundtrack. The song is performed by Ashley Tisdale and Lucas Grabeel as Sharpay Evans and Ryan Evans.

The Radio Edit version of the song premiered on Radio Disney on August 15, 2008 as part of its Planet Premiere featurette. An extended version of the song was released on iTunes on September 9, 2008, available to digital download. The song is currently playing only on Radio Disney, reaching number 1 on radio's weekly countdown. The song and eleven other songs from the High School Musical 3 soundtrack were pre-nominated in the "Best Original Song" category for The 81st Academy Awards. The final nominations were announced on January 22, 2009 and not any of the songs from the soundtrack got a nomination., but according to Billboard, the song should have been nominated. The song was used as background music in Britain's Got Talent (series 3) auditions.

Two previews of the movie scene (credited as the two official music videos of the song) premiered on Disney Channel during the world premiere of The Cheetah Girls: One World, on August 22, 2008. Both feature Sharpay and Ryan singing and dancing about fame and glamour, but playing different parts of the song. The third preview of the movie scene was released on October 17, 2008. It plays another part of the song and shows brand new scenes with Sharpay and Ryan being superstars and a special appearance by Zac Efron.

I Want It All stayed for four weeks on the Bubbling Under Hot 100 Singles chart and never entered on Billboard Hot 100. It also debuted on #3 on Hot 100 Singles Sales chart but fell out on the next week. Outside from the U.S, the song debuted on #75 on Canadian Hot Digital Songs chart but didn't enter on the official chart. Also, debuted on #87 on UK Singles Chart.

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