The slogan "What happens here, stays here" is coming to the end of its near 20-year residency in Las Vegas. Insiders tell the Las Vegas Review-Journal that the slogan created in 2002 has been updated to "What happens here, only happens here." The sources say the new slogan, which is part of an effort to get millennials more "energized" about visiting the city, will be officially unveiled in an ad during the Grammy Awards Sunday night. Billy Vassiliadis, CEO of R&R Partners marketing firm, says they want the new slogan to be a "constant presence" that ties into "only in Vegas" events. ABC reports that marquees on the Las Vegas Strip will light up with the new slogan starting at 6pm Sunday. (More Las Vegas stories.)