Rockefeller Center is a complex of 19 commercial buildings covering 22 acres (89,000 m²) between 48th and 51st streets in New York City, United States. Built by the Rockefeller family, it is located in the center of Midtown Manhattan, spanning the area between Fifth Avenue and Sixth Avenue. It was declared a National Historic Landmark in 1987.

Rockefeller Center was named after John D. Rockefeller, Jr., who leased the space from Columbia University in 1928 and developed it from 1930. Rockefeller initially planned a syndicate to build an opera house for the Metropolitan Opera on the site, but changed his mind after the stock market crash of 1929 and the Metropolitan's continual delays to hold out for a more favorable lease, causing Rockefeller to move forward without them. Rockefeller stated "It was clear that there were only two courses open to me. One was to abandon the entire development. The other to go forward with it in the definite knowledge that I myself would have to build it and finance it alone." He took on the enormous project as the sole financier, on a 27-year lease (with the option for three 21-year renewals for a total of 87 years) for the site from Columbia; negotiating a line of credit with the Metropolitan Life Insurance Company and covering ongoing expenses through the sale of oil company stock. The initial cost of acquiring the space and razing some of the building and construction of new building was an estimated $250,000,000 dollars; a staggering sum in 1930.

Mariah Carey (born March 27, 1970) is an American singer, songwriter, record producer, and actress. She made her recording debut in 1990 under the guidance of Columbia Records executive Tommy Mottola, and released her self-titled debut studio album, Mariah Carey. The album went multi-platinum and spawned four consecutive number one singles, on the U.S. Billboard Hot 100 chart. Following her marriage to Mottola in 1993, a series of hit records, including Emotions (1991), Music Box (1993) and Merry Christmas (1994), established her position as Columbia's highest-selling act. Daydream (1995), made music history when the second single, "One Sweet Day" a duet with Boyz II Men, spent a record sixteen weeks on top of the Billboard Hot 100, and remains the longest running number one song in US chart history. During the recording of the album Carey began to deviate from her pop background, and slowly traversed into R&B and Hip-hop. After her separation from Mottola, this musical change was evident with the release of Butterfly (1997).

Ariana Grande-Butera (born June 26, 1993) is an American actress, singer, and dancer. She made her performance debut on Broadway at age 15. Recently, she has gained attention for her role as Cat Valentine on the Nickelodeon sitcom Victorious.

Grande was born and raised in Boca Raton, Florida. She is of Italian descent, half Sicilian, half Abruzzese.

In 2008, Grande played the role of Charlotte in the musical 13 on Broadway, for which she won a National Youth Theatre Association Award. When she joined the musical, Grande left her high school, North Broward Preparatory School, but continued to be enrolled. The school sent materials to her for study with tutors. She played the role of Miriam in the first reading of the forthcoming musical Cuba Libre composed by Desmond Child. Grande teaches music and dance to children in South Africa each year as a member of Broadway in South Africa.

Grande plays the character Cat Valentine on the Nickelodeon television show Victorious, which premiered in March 2010.

Kelly Brianne Clarkson (born April 24, 1982) is an American singer, songwriter and occasional actress. Clarkson came into prominence after becoming the winner of the inaugural season of the television series American Idol in 2002 and later was the runner-up in the television special World Idol in 2003.

In 2003, Clarkson released her debut album, Thankful, which was a commercial success and established herself in the pop music industry. The release of its first single, "A Moment Like This" (2002), broke The Beatles' record for the biggest leap to number one, from 52, in the history of the Billboard Hot 100 chart. After parting ways with her management, Clarkson developed a more rock-oriented music with the release of her critically acclaimed sophomore album, Breakaway (2004), which sold more than 12 million copies worldwide and which garnered Clarkson more worldwide success as a pop rock artist. The album's single, "Because of You" (2005), became the best-selling single by an Idol contestant worldwide. In 2007, Clarkson took full creative control for her third album My December, which had a more rock-inspired sound and was met with controversy and moderate success. Clarkson later returned to a more pop-oriented sound with All I Ever Wanted (2009), which became a commercial and critical success. The album's lead single, "My Life Would Suck Without You" (2009), surpassed "A Moment Like This"'s record for the biggest leap to number one on a single week in the history of the Billboard Hot 100 Chart, a milestone it still holds today. Furthermore, it also became her first number one single in the United Kingdom. Clarkson's fifth studio album, Stronger, was released in 2011, containing elements from synthpop, R&B and country music. The album's single, "Stronger (What Doesn't Kill You)" (2012), became her longest number one single and eventually became her best-selling single in the United States.

Jacqueline Marie "Jackie" Evancho ( /iːˈveɪŋkoʊ/ ee-VAYNG-koh; born April 9, 2000) is an American classical crossover singer who has gained wide recognition at an early age.

Between 2008 and 2010, Evancho entered several talent competitions; made singing appearances, mostly in Pennsylvania; issued an independent album, Prelude to a Dream; and attracted interest on YouTube. Later in 2010, at the age of 10, she gained wider popularity with her performances in the fifth season of the America's Got Talent (AGT) competition, finishing in second place. With the subsequent release of her O Holy Night EP, she became the best-selling debut artist of 2010, the youngest top-10 debut artist in U.S. history and the youngest solo artist ever to go platinum. In June 2011, her first full-length major-label album, Dream With Me, debuted at #2 on American album charts, and she became the youngest top-5 debut artist in UK history. Billboard ranked Evancho the top Classical Albums Artist for 2011.

Evancho impressed composers Tim Janis and David Foster, each of whom included her in his concerts beginning in 2009. Foster later produced Evancho's album, Dream With Me, and subsequent PBS special for the television series, Great Performances. Evancho performed in front of U.S. President Barack Obama at the 2010 National Christmas Tree lighting in Washington, D.C. She is the ambassador for "Mission: Humane", a Humane Society program which encourages children's involvement in the protection of animals. She features songs from Dream With Me in a 2011–12 concert tour with symphony orchestras. Evancho released another studio album, Heavenly Christmas, in November 2011. The same month, she became the youngest person ever to give a solo concert at Lincoln Center in New York City. A national cotillion organization listed her as one of the "ten best-mannered people of 2011".