This isn't a Timbaland production, but rather a Timbaland Productions production, meaning it's not directly done by Tim, but rather his production crew, which consists of Big Tank, Mike Pettaway and Spunk.  Big Tank co-produced Missy's "One Minute Man" and Mike Pettaway has played guitar on some of Timbaland's track.  Other tracks produced by these three include "Superstar" by blind rapper Supervision, and a track on the upcoming NSync album, Celebrity.  So be on the lookout now for songs being advertised as Timbaland productions, such as "AZ's Back".  I hope this clears up any confusion one was lead to have when I said that the AZ track wasn't a Timbo track, but a Timbaland Productions track.
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