The Nashville Kats of the Arena Football League.....twice.
The original 1997-2001 version, which was the better of the 2. Andy Kelly was the QB and the team made the Arena Bowl back to back in 2000 and 2001. They then moved to Atlanta because the team couldn't agree to a deal with the Nashville Predators for Bridgestone Arena (then Gaylord Entertainment Center).
Then the 2005-2007 version, owned by Bud Adams and Tim McGraw. This version kinda sucked. They weren't that good and they changed their uniforms so that they basically looked very similar to the Titans. In fact their home look is what the Titans pretty much switched to around 2008:
Kats
Titans