Major Thomas Henry Gem (21 May 1819 – 4 November 1881), known as Harry Gem, was an English lawyer, soldier, writer and sportsman.

Alongside his friend Augurio Perera, he is credited as the earliest inventor of the game of lawn tennis.

Gem was born in Birmingham and educated at King's College London. From 1841 he practiced as a solicitor in Birmingham, becoming a magistrate's clerk in 1856.

Highly active in local life, Gem wrote journalism and drama for several local publications, rose to the rank of Major in the 1st Warwickshire Rifle Volunteer Corps and was active in numerous sports including cricket and athletics. He is recorded as having won a bet by running the 21 miles from Birmingham to Warwick in under three and a half hours.

Among Gem's sporting interests was the game of rackets, which he played at the Bath Street Racquets Club adjacent to the Racquet Court Inn in Bath Street, Birmingham with his friend Augurio Perera, a Spanish merchant based in Birmingham. Frustrated at the complex and expensive facilities required for rackets, however, the two developed a simpler game that could be played on Perera's croquet lawn at 8 Ampton Road in Edgbaston, incorporating elements of rackets alongside features of the Basque game of pelota.

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.

Onika Tanya Maraj (born December 8, 1982), known by her stage name Nicki Minaj ( /mɪˈnɑːʒ/), is a Trinidadian-born American rapper and singer-songwriter. She was born in Saint James, Trinidad and Tobago and when she was 5 years of age she moved to the New York City borough of Queens, where she grew up.

After releasing three mixtapes between 2007 and 2009 and being signed to Young Money Entertainment in August 2009, Minaj released her debut album, Pink Friday, in November 2010. It quickly became a commercial success, peaking at number one on the U.S. Billboard 200 and being certified Platinum by the Recording Industry Association of America (RIAA) a month after its release. She became the first female solo artist to have seven singles on the Billboard Hot 100 at the same time. Her second single, "Your Love", reached number 1 on the Billboard Hot Rap Songs chart, making Minaj the first female artist to top the chart unaccompanied since 2002. She also became the first female artist to be included on MTV's Annual Hottest MC List. Minaj was named the 2011 Rising Star by Billboard. Her second studio album, Pink Friday: Roman Reloaded was released on April 3, 2012.