A regnal name, or reign name, is a formal name used by some monarchs and popes during their reigns. Since medieval times, monarchs have frequently chosen to use a name different from their own personal name when they inherit a throne.

The new name (or sometimes the old one, confirmed) is followed by an ordinal to give a unique name for the period when the monarch is on the throne. However, in the case of a personal union, the same ruler may carry different ordinals in each state, as they are each assigned chronologically; but some may have more (or less) precursors of the same Christian name (usually from a different dynasty).

In parts of Asia, monarchs take era names. Even where that is not the case, individual rulers (often long-lived ones) — instead of a whole dynasty, as is the case with Georgian, referring to several Georges of the Hanoverian dynasty — may become eponymous of their age or the zeitgeist of an epoch. Examples include (from the United Kingdom) Victorian (even applied to the rest of the world) or Edwardian.

Billy Clyde Gillispie (pronounced /ɡɨˈlɪspi/ gə-LIS-pee), also known by his initials BCG, is an American college basketball coach. Since 2011, he has been the current head coach of the men's basketball team at Texas Tech University. He was hired as head coach for the Red Raiders on March 20, 2011.

After leading both UTEP Miners and Texas A&M Aggies to postseason appearances one year after poor seasons, Gillispie became the only college basketball coach to be in charge of the National Collegiate Athletic Association (NCAA) program with the biggest turnaround in two consecutive seasons. Gillispie is known as an excellent recruiter who has managed to put together four straight top-25 recruiting classes. In his three seasons at Texas A&M, the Aggies achieved three consecutive 20-win seasons for the first time in the program's history.

Billy Clyde Gillispie was born November 7, 1959 in Abilene, Texas,^{[dead link]} the middle child and only boy among five children of Clyde, a cattle truck driver, and Winifred Gillispie. He grew up in Graford, Texas, a town of 494 people located about 65 miles west of Fort Worth. As a child, Gillispie worked as a paperboy, delivering copies of The Fort Worth Press. At Graford High School, Gillispie played point guard for the basketball team and was a standout athlete in his graduating class of 20 students. He attended Ranger College, playing basketball and baseball for them from 1978 to 1980, before transferring to Sam Houston State University to work as a student assistant for their basketball team under coach Bob Derryberry, a former classmate of Gillispie's father. Derryberry moved to Southwest Texas State University (now Texas State University–San Marcos) the following year, and Gillispie accompanied him, spending three years as a graduate assistant. Gillispie received his degree in education from Southwest Texas State in 1983.

Stefani Joanne Angelina Germanotta (/ˈstɛfəniː dʒʌrməˈnɑːtə/ STE-fə-nee jurr-mə-NAH-tə; born March 28, 1986), known by her stage name Lady Gaga, is an American singer and songwriter. Born and raised in New York City, she primarily studied at the Convent of the Sacred Heart and briefly attended New York University's Tisch School of the Arts before withdrawing to focus on her musical career. She began performing in the rock music scene of Manhattan's Lower East Side, and was signed with Streamline Records by the end of 2007. During her employment as a songwriter for the record company, her vocal abilities captured the attention of recording artist Akon, who signed her to his label Kon Live Distribution.

Lady Gaga came to prominence as a recording artist following the release of her debut album The Fame (2008), which was a critical and commercial success that topped charts around the world and included the international number-one singles "Just Dance" and "Poker Face". After embarking on the The Fame Ball Tour, she followed the album with The Fame Monster (2009), which spawned the worldwide hit singles "Bad Romance", "Telephone" and "Alejandro". The album's success allowed her to embark on the eighteen-month long Monster Ball Tour, which later became one of the highest-grossing concert tours of all time. Her most recent album Born This Way (2011) topped the charts of most major markets and generated more international chart-topping singles, including "Born This Way", "Judas" and "The Edge of Glory". Besides her musical career, she involves herself with humanitarian causes and LGBT activism.

Kendrick Lamar Duckworth (born June 17, 1987), simply known as Kendrick Lamar, is an American rapper and songwriter from Compton, California currently signed to Top Dawg, Aftermath and Interscope. He first gained major attention after the release of his 2010 mixtape Overly Dedicated. In 2011, his album Section.80, released exclusively through iTunes, instantly ranked as one of the top digital hip hop releases of the year. Lamar has amassed a large internet following, is a member of hip hop collective Black Hippy, along with Jay Rock, Schoolboy Q and Ab-Soul, and has worked with Snoop Dogg, Dr. Dre, Wiz Khalifa, Game, Drake, Busta Rhymes and Tech N9ne among other popular artists.