Nightline, or ABC News Nightline is a late-night news program broadcast by ABC in the United States, and has a franchised formula to other networks and stations elsewhere in the world. It airs weeknights, usually for 31 minutes. Created by Roone Arledge, the program featured Ted Koppel as its main anchor from March 1980 until his retirement from the program in November 2005. As of February 25, 2011, the Executive Producer is Jeanmarie Condon. The program airs weeknights on local ABC stations at 11:35pm ET or later.

In 2002, Nightline was ranked twenty-third on TV Guide's 50 Greatest TV Shows of All Time.

The program had its beginnings on November 8, 1979, just four days after the Iran hostage crisis started. ABC News president Roone Arledge felt the best way to compete against NBC's The Tonight Show Starring Johnny Carson was to update Americans on the latest news from Iran. At that time, the show was called: "The Iran Crisis—America Held Hostage: Day xxx" where xxx represented each day Iranians held hostage the occupants of the U.S. Embassy in Tehran, Iran. Originally, World News Tonight lead anchor Frank Reynolds hosted the special report. Shortly after its creation, Reynolds stopped hosting the program. Ted Koppel, then ABC News's State Department Correspondent, took on the hosting duties. It wasn't until a few days later that a producer had the idea of displaying the number of days on "America Held Hostage": Day 15, Day 50, Day 150, and so on.

Céline Marie Claudette Dion, CC OQ, (French pronunciation: [selin djɔ̃] ( listen); born March 30, 1968), is a Canadian singer. Born to a large family from Charlemagne, Quebec, Dion emerged as a teen star in the French-speaking world after her manager and future husband René Angélil mortgaged his home to finance her first record. In 1990, she released the English-language album Unison, establishing herself as a viable pop artist in North America and other English-speaking areas of the world.

Dion had first gained international recognition in the 1980s by winning both the 1982 Yamaha World Popular Song Festival and the 1988 Eurovision Song Contest. Following a series of French albums in the early 1980s, she signed on to CBS Records Canada in 1986. During the 1990s, with the help of Angélil, she achieved worldwide fame after signing with Epic Records and releasing several English albums along with additional French albums, becoming one of the most successful artists in pop music history. However, in 1999 at the height of her success, Dion announced a hiatus from entertainment in order to start a family and spend time with her husband, who had been diagnosed with cancer. She returned to the top of pop music in 2002 and signed a three-year (later extended to almost five years) contract to perform nightly in a five-star theatrical show at the Colosseum at Caesars Palace, Paradise, Nevada.

Hyunju "Juju" Chang (born September 17, 1965) is a Korean-American Emmy Award-winningtelevision journalist for ABC News, and currently serves as a special correspondent and fill-in anchor for Nightline. Previously she was the news anchor for ABC News’ morning news program Good Morning America from 2009–2011.

Juju Chang was born in Seoul, South Korea, to Okyong and Palki Chang and was raised in Sunnyvale, California, following her family’s emigration to the U.S. in 1969. At a young age, Chang was a nationally ranked swimmer.

She graduated with honors from Stanford University with a Bachelor of Arts in political science and communications. At Stanford she was awarded the Edwin Cotrell Political Science Prize.

Chang began work for ABC in 1984 as a desk assistant. In 1991 she became a producer and off-air reporter for World News Tonight, producing live events coverage and stories for its "American Agenda" segment. Her off-air reporting assignments included the 1991 Gulf War (during which she was based in Dhahran, Saudi Arabia) and the 1992 U.S. presidential election.