In part one of this week's Sunday Sitdown, Sunday TODAY's Willie Geist joins music legend Billy Joel at his home on Long Island to look back through fifty years of his iconic music. Joel reflects on the end of his record-breaking run at Madison Square Garden and reacts to the sing-along legacy of "Piano Man." In part two of this week's Sunday Sitdown, Billy Joel tells Willie Geist about the origins of his classic songs "Piano Man" and "Uptown Girl" and shares his thoughts on fan theories about one his songs. Joel also reveals how he spoke with Don Henley and Bruce Springsteen about plans for his next move after the final show of his record-breaking residency at Madison Square Garden. France put on a show for the ages and Team USA, chock-full of gold medal stars, delivered a resounding win for the United States. The Games closed with Tom Cruise bringing the Olympic flag in true Hollywood style from Paris to Los Angeles, which has big plans of its own for 2028. NBC's Anne Thompson reports in this week's Sunday Focus.