"If I Had You" is a song by American recording artist and American Idol season eight runner-up Adam Lambert. The song was written by Max Martin, Shellback, and Savan Kotecha and produced by Martin, Shellback and Kristian Lundin for Lambert's debut album, For Your Entertainment. It was released as the third and final international single from the album on May 11, 2010. The song reached number 30 in the United States and reached the top ten in Australia, Canada, Finland, Hungary and New Zealand. The song was performed on Lambert's first concert tour, the 2010 Glam Nation Tour where it was the show's finale.

Huffington Post noted that this is one of songs that is a "full-display" of album that "operates from a disco/glam aesthetic of escapism and liberation via dance, dress-up, and desire" and added that it "fully accomplish what the singer had in mind for the album: songs that make you want to let loose, dance, work out, have fun." Detroit News thought that this song was "potential single" when reviewing the album. It was listed, at 57th spot, by Billboard on "Top 100 'American Idol' Hits of All Time" list.

Following the release of the single on May 11, 2010, Lambert performed the song on a series of talk-shows, including The Ellen DeGeneres Show on May 19, and The Tonight Show with Jay Leno on May 21.

The video premiered June 14, 2010 on VH1 and "takes the late-night wilderness party motif of Jennifer Lopez's classic "Waiting for Tonight" clip and adds more lasers, guyliner, thrashy dance moves, silver top hats and outrageously spiky shoulder pads."Bryan Barber directed the video, which was inspired by Lambert's self-proclaimed "psychedelic" experience at Burning Man.

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