Question: What Richie Valen cover did Selena sing?
Related documents: [0]  [DOC] American singer Selena released twenty-seven official singles, seven promotional singles, and made five guest vocalist appearances. Her career began as the lead vocalist of Los Dinos in 1980. Her albums with Los Dinos on indie labels failed to achieve any chart success. In 1987, her cover of Ritchie Valens' "La Bamba" peaked at number 19 on the United States "Billboard" Hot Latin Songs chart, her first entry. She signed with EMI Latin nine years later as a solo artist though her band continued to tour with her. Selena appeared on "Buenos Amigos" with Salvadoran singer Álvaro Torres. The track peaked at number one on the U.S. Hot Latin Songs chart in 1991, the singer's first number one song. Subsequent singles, "Baila Esta Cumbia" and "Como la Flor", became popular songs on Mexican radio, with "Como la Flor" launching the singer's career in that country. "Como la Flor" peaked at number six on the Hot Latin Songs chart, despite popular culture claims that it was the singer's first number one single. The track has charted on the U.S. Regional Mexican Digital Songs list since its inception in 2010 and remains the singer's signature number and most popular recording. [END] 
[1]  [DOC] "La Bamba" has been covered by numerous artists, most notably by Los Lobos, whose version was the title track of the 1987 film "La Bamba" and reached No. 1 in the U.S. and UK singles charts in the same year. The Los Lobos version remained No. 1 for three weeks in the summer of 1987. The music video for Los Lobos' version, directed by Sherman Halsey, won the 1988 MTV Video Music Award for Best Video from a Film. [END] 
Answer: 
"La Bamba"
"La Bamba"