The Eurovision Song Contest (French: Concours Eurovision de la Chanson) is an annual competition held among active member countries of the European Broadcasting Union (EBU).

Each member country submits a song to be performed on live television and then casts votes for the other countries' songs to determine the most popular song in the competition. The contest has been broadcast every year since its inauguration in 1956 and is one of the longest-running television programmes in the world. It is also one of the most watched non-sporting events in the world, with audience figures having been quoted in recent years as anything between 100 million and 600 million internationally. Eurovision has also been broadcast outside Europe to such places as Argentina, Australia, Brazil, Canada, Chile, China, Colombia, Egypt, India, Japan, Jordan, Mexico, New Zealand, the Philippines, South Korea, Taiwan, Thailand, the United States, Uruguay and Venezuela despite the fact that that they do not compete. Since 2000, the contest has also been broadcast over the Internet, with more than 74,000 people in almost 140 countries having watched the 2006 edition online.

Ruth Lorenzo) is a Spanish singer notable for coming fifth in the fifth series of the British TV talent show The X Factor in 2008.

Lorenzo's debut Single "Burn" entered the Spanish Singles Charts at number 16 when she released the single on the 27th of June 2011 in Spain. Lorenzo will Release the single in the UK on the 7th of August 2011.

Ruth Lorenzo was born in Murcia, a south-eastern region of Spain. At a very young age she became a fan of the musical Annie and although she had no idea of what the words meant she would sing along to the songs in English. When she was six years old she discovered music by Montserrat Caballé, a Spanish opera singer, and after her mother bought her an album by Caballé, Lorenzo began to sing opera, imitating Caballé's vocals until she was pitch perfect.

At the age of 12, Lorenzo's family moved to America and this was the first time she had the opportunity to be involved in music at school. After much encouragement from her teachers, Lorenzo was entered into competitions and played lead roles in musical productions such as The Phantom of the Opera and My Fair Lady. When Lorenzo turned 16 the family returned to Spain and although having had singing lessons by this time, she had to cancel these lessons due to family financial difficulty and as a result Lorenzo gave up on her dream of becoming a recording artist.

Valentina Monetta (born 1 March 1975, City of San Marino) is a Sammarinese singer.

On 14 March 2012, it was announced by San Marino RTV, that she would represent San Marino in the Eurovision Song Contest 2012, to be held in Baku, Azerbaijan with the entry "Facebook Uh, Oh, Oh". She was internally selected by RTV. However on March 18, 2012, a few days after the song was announced, the EBU deemed that the song contained an unreasonable commercial message for Facebook, which resulted in the lyrics' disqualification; according to the Eurovision Rule 1.2.2.g, commercial messages within songs are not allowed. San Marino was then given the option of submitting a new song for Monetta, or revising the lyrics to remove any references to Facebook, no later than 23 March 2012 12:00 CET.On March 22, SMTV announced that the song and its lyrics has been revised with a new title, "The Social Network Song (OH OH – Uh - OH OH)", with mostly the same lyrics, except without directly mentioning Facebook.

Monetta performed at the first semi-final but failed to qualify for the final.