Ryan Steven Lochte (born August 3, 1984) is an American swimmer and a six-time Olympic medalist (three gold, two silver, one bronze). As part of the American team, he holds the world record in the 4×200-meter freestyle relay (long course). Individually, he currently holds the world record in the 200-meter individual medley (long and short course) and the 400-meter individual medley (short course).

Lochte's success has earned him the World Swimmer of the Year Award and the American Swimmer of the Year Award twice. He has also been named the FINA Swimmer of the Year twice. He has won a total of fifty-seven medals in major international competition, thirty-seven gold, eleven silver, and nine bronze spanning the Olympics, the World, Pan American, and the Pan Pacific Championships.

Lochte specializes in the backstroke and individual medley, but is also a freestyle swimmer. He is noted for the speed and distance he attains while kicking underwater. Lochte is also known for his dominance in the short course format (25-yard long swimming pool).

David Michael Letterman (born April 12, 1947) is an American television host and comedian. He hosts the late night television talk show, Late Show with David Letterman, broadcast on CBS. Letterman has been a fixture on late night television since the 1982 debut of Late Night with David Letterman on NBC. Letterman recently surpassed friend and mentor Johnny Carson for having the longest late-night hosting career in the United States of America.

Letterman is also a television and film producer. His company Worldwide Pants produces his show as well as its network follow-up The Late Late Show with Craig Ferguson. Worldwide Pants has also produced several prime-time comedies, the most successful of which was Everybody Loves Raymond, currently in syndication.

In 1996, David Letterman was ranked #45 on TV Guide's 50 Greatest TV Stars of All Time.

Letterman was born in Indianapolis, Indiana. His father, Harry Joseph Letterman (April 1915 – February 1973), was a florist of British descent; his mother Dorothy Letterman (née Hofert, now Dorothy Mengering), a Presbyterian church secretary of German descent, is an occasional figure on the show, usually at holidays and birthdays.

James Thomas "Jimmy" Fallon, Jr. (born September 19, 1974) is an American actor, comedian, singer, musician and television host. He currently hosts Late Night with Jimmy Fallon, a late-night talk show that airs Monday through Friday on NBC. Prior to that he appeared in several films, and was best known as a cast member on Saturday Night Live from 1998–2004.

James Thomas Fallon, Jr., was born in Brooklyn, New York. Jimmy is the son of Gloria and James Fallon, Sr., who is a Vietnam War veteran. His family later settled in Saugerties, New York, while his father worked at IBM in nearby Kingston, New York. He is of Irish descent. As a child, he and his older sister, Gloria, would reenact the “clean parts” of Saturday Night Live that his parents had taped for him. Fallon was such a fan of Saturday Night Live that he made a weekly event of watching it in his dormitory during college. In his teens, he impressed his parents with different impersonations, the first being of James Cagney. He was also musically inclined, and started playing guitar at age 13. He would go on to mix comedy and music in contests and shows.