Caviar was an alternative rock band from Chicago, Illinois. The band was created around 1999 by singer Blake Smith and bassist Mike Willison after the breakup of their previous band Fig Dish. Guitarist Dave Suh and drummer Jason Batchko were added to complete the lineup. The band has not been active recently and Smith and Willison are now performing with Scott Lucas of Local H in their electronica project The Prairie Cartel. Guitarist Suh has remained active and is currently the lead singer / lead guitarist of a Chicago band called The Assembly.

They have had several songs played on the radio. The songs "Tangerine Speedo" and "On the DL" are their biggest hits. "Tangerine Speedo" was featured in the first Charlie's Angels movie and "Sugarless" was featured on the soundtrack of Gone in 60 Seconds. Safeway has featured in its TV commercials two songs from Thin Mercury Sound, including "Clean Getaway" in the summer of 2005 and "Lioness" in 2004.