"Trespassing" is a song by American singer Adam Lambert from his second studio album, Trespassing. The song was released as the album's third and final single on October 8, 2012. It was written and produced by Pharrell Williams. It received generally favorable reviews from critics and fans. The song peaked at number 92 on the Canadian Hot 100 chart, and peaked at number 33 on the US Hot Dance Club Songs chart.

Trespassing is the second studio album by American singer Adam Lambert, released on May 15, 2012, by RCA Records Originally scheduled for March 20, 2012, the album was pushed back for two months in order to add more songs and collaborations. In late March, alongside the reveal of snippets of four album tracks, Lambert announced on Twitter that the album would be released on May 15, 2012. Lambert is the executive producer on Trespassing, as well as a principal writer.