The Dolly Sisters, twins Roszika (Rosie) and Janszieka (Jenny) Deutsch were Vaudeville performers.

They were born October 25, 1892 in Hungary, and immigrated to the United States in 1905. They perfected a single-sex "tandem" dance act - practising in front of mirrors - under the name of 'The Dolly Sisters' they began earning money in beer halls as early as 1907. Barred for being under age by the New York City stage, they toured the Orpheum Circuit until 1909 when they debuted on the Keith Vaudeville Circuit till 1911 when they signed with the Ziegfeld Follies for two seasons.

In addition to making about a half dozen films from 1913 to 1920, they toured the theatres and dance halls of Europe. Sometimes they would appear with separate partners as "rival" acts to boost ticket sales. Their gambling "career" was nearly as successful. They won $850,000 in one season at Deauville and one evening in Cannes, Jenny won 4 million francs, which she converted to a collection of jewelry; she then went on to win another 11 million.

Enrique "Ricky" Martín Morales (born December 24, 1971), better known as Ricky Martin, is a Puerto Rican pop singer and actor who achieved prominence, first as a member of the Puerto Rican boy band Menudo, then as a solo artist since 1991. Throughout his career, he has sold more than 60 million albums worldwide. He is the founder of the Ricky Martin Foundation (in Spanish Fundación Ricky Martin), a non-profit charity organization aimed at human trafficking.

Martin got his start at age twelve with the all-boy pop group Menudo; after five years with the group, he released his Spanish-language solo album, Ricky Martin, in 1991. He also acted on stage and on TV in Mexico, becoming a modest star in the country. In 1994 he starred on the American TV soap opera General Hospital, playing a Puerto Rican singer. In 1999, after several albums in Spanish, he released his first English-language album (also titled Ricky Martin), which included "Livin' la Vida Loca". The album sold 22 million copies and brought Martin international fame. His other studio albums include: Me Amarás (1993), A Medio Vivir (1995), Vuelve (1998), Sound Loaded (2000), Almas del Silencio (2003), Life (2005), and Música + Alma + Sexo (2011).