Originally released as a slow ballad, this was re-recorded as a fast-paced duet with Christina Aguilera in 2001.
After the duet with Aguilera was recorded, it replaced Martin's solo version on Sound Loaded. People who had already bought the album were allowed to download the new version or send away for a free copy.
Separate copies the duet were included with versions of Sound Loaded that were already pressed with Martin's solo version.
Martin performed this on January 8, 2001 on The American Music Awards.