A Los Angeles-based parents group wants Justin Timberlake to keep it clean during the Super Bowl halftime show.
In an open letter to the pop star, the Parents Television Council says they don't need a repeat of the infamous wardrobe malfunction of 2004 with Janet Jackson.
The so-called "Nipplegate" was talked about for weeks and made international headlines despite the nation entering a war with Iraq at the time.
The group says millions of children will be watching the game Sunday and urged Timberlake to keep the performance family-friendly.
Since 2004 Timberlake got married and is now a father.