In 2004, the Federal Communications Commission imposed a record $550,000 fine, the largest fine ever for a violation of federal decency laws, against CBS for an incident during its broadcast of Super Bowl XXXVIII in which singer Janet Jackson's right breast (which was partially covered by a piece of nipple jewelry) was briefly and accidentally exposed by guest performer Justin Timberlake at the end of a duet performance of Timberlake's 2003 single "Rock Your Body" during the halftime show (produced by then sister cable network MTV).[222] Following the incident, CBS apologized to its viewers and denied foreknowledge of the incident, which was televised live.