"Mobile" is Avril Lavigne's fifth and final single released from her debut album Let Go. It was only released in Australia and New Zealand. It was a released as a radio-only single in Australia but was released as an airplay and physical single in New Zealand, and later peaked at #26 on the RIANZ Singles Chart. It also became an airplay hit there. The song still received popularity when it was used in the 2004 film Wimbledon. It was also used in the 2003 film Gigli. This song was used during commercials for the NHL Playoffs a few years back. No video was shot for the single.

The song was also used in a movie entitled The Medallion, where it leads from the ending scene into the credits.