Certainly a huge lot, because she started vry young: "Selena Quintanilla-Pérez (April 16, 1971 – March 31, 1995), best known as Selena, was a Mexican American singer who has been called "the queen of Tejano music". The youngest child of a Mexican-American couple, Selena released her first album at the age of twelve. She won Female Vocalist of the Year at the 1987 Tejano Music Awards and landed a recording contract with EMI a few years later. Her fame grew throughout the early 1990s, especially in Spanish-speaking countries. Her album Selena Live! won Best Mexican-American Album at the 36th Grammy Awards and her 1994 album Amor Prohibido, which was nominated for another Grammy, produced four number one Spanish hits. Selena attained further notability in North America after she was murdered at the age of 23 by Yolanda Saldívar, the president of her fan club." "She began singing at the age of six; when she was nine her father founded the singing group Selena y Los Dinos, which she fronted. They initially performed at the Quintanilla family's restaurant, "Papa Gayos," but the restaurant failed shortly afterwards. The family soon went bankrupt and was evicted from their home. Taking their musical equipment in an old bus, they relocated to Corpus Christi, Texas. There, they performed wherever they could: at street corners, weddings, quinceañeras, and fairs. These efforts at spreading their names paid off in 1984 when Selena was twelve years old, she recorded her first album for a local record company. The album was not sold in stores and her father bought all of the original copies. It was re-released in 1995 under the title Mis Primeras Grabaciones. Selena did well in school, but as she grew more popular, the travel demands of her performance schedule began to interfere with her education. Her father pulled her out of school altogether when she was in eighth grade. She continued her education on the road; at age seventeen she earned a high school diploma from The American School of Correspondence in Chicago. Selena released her second album, Alpha, in 1986." Source and further information: http://en.wikipedia.org/wiki/Selena Selena - Si Una Vez http://www.youtube.com/watch?v=VytY-mXWF1o

Selena did a lot of concerts. She was with los dinos since about age 10 and has even travelled to Monterrey, Mexico.