Marco may refer to:

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.

Marco Mengoni (born December 25, 1988) is an Italian singer. He rose to fame in 2009, after winning the third season of Italian talent show The X Factor. The following year he ranked third in the 60th Sanremo Music Festival with the song "Credimi ancora". As of January 2011, he has sold a total of 220,000 copies in Italy with his first two EPs and his live album Re matto live. In 2010 he became the first Italian artist to win the Best European Act award at the MTV Europe Music Awards. His first full-length studio album, Solo 2.0, was released in September 2011.

Marco Mengoni was born in Ronciglione (Viterbo, Italy). Before starting his singing career, he graduated in industrial design and he started studying Languages in Rome, occasionally working as a barman.

He started singing at the age of 16 and two years later he funded his first band.

In 2009 he auditioned for the third series of the Italian talent-show X Factor. His category (16-24 year olds) was mentored by Morgan, and Mengoni was chosen to be among Morgan's top 4 contestants and perform on the live shows.

Marco Masini (born September 18, 1964) is an Italian singer-songwriter

Marco Masini was born on September 18, 1964, the Italian city of Florence. His mother, Anna Maria, sang and played piano, and was an elementary school teacher before she quit the profession to have a life at home with the family. His father, Giancarlo, worked as a representative of products for hairdressers. When Marco was three years old he received piano as a Christmas present: He put his hands on it and then how to play the songWhite Christmasjust to hear it. Taking the advice of his uncle, in March began to take music lessons and some years later, came to study large stars of European traditional music, Chopin and Mozart were beginning a solicitation to Marco Masini. Although he also loved pop music, classic rock and traditional music of Italy. When he was 11 years, he had the opportunity to touch the holy festival of the patron of a small town near Florence. He played many musical styles, from disco to Liscia to classical revival. During high school he created, along with friends, a music group called Errata Fixes. When he was 15, he played on a team called Sanger and participated in trials to play. However, there may he decided to leave the sport because he loved music.

Anna Oxa (born Iliriana Hoxha on 28 April 1961) is an Italian singer of Albanian descent, well-known through her numerous appearances in the televised Italian song contest, the Sanremo Music Festival. In 1978, at the age of sixteen, she took second place with the song "Un'emozione da poco" at the Sanremo Festival. In 1989 with "Ti Lascerò", a duet with Fausto Leali, she came in first place and then did the same again ten years later with "Senza pietà".

Together with Fausto Leali she represented Italy in the Eurovision Song Contest in 1989. Their entry, "Avrei voluto" was placed ninth out of a total of 22 songs.

She was married to the Kosovar businessman Behgjet Pacolli.