what was her debut album called?
"Taylor Swift"
Taylor Swift
She began working on her eponymous debut album shortly after. Swift persuaded Big Machine to hire her demo producer Nathan Chapman, with whom she felt she had the right "chemistry". She wrote three of the album's songs alone, and co-wrote the remaining eight with Rose, Robert Ellis Orrall, Brian Maher, and Angelo Petraglia. "Taylor Swift" was released on October 24, 2006. 
when did taylor swift became a pop singer In the year 2004, at the age of 14.
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Taylor Swift [SEP] 2004–2008: Career beginnings and "Taylor Swift"
With "Our Song", Swift became the youngest person to single-handedly write and perform a number-one song on the chart. "Teardrops on My Guitar" reached number thirteen on the "Billboard" Hot 100 songs chart in the United States. Swift also released the holiday album "" in October 2007 and the EP "Beautiful Eyes" in July 2008. She promoted her debut album extensively as the opening act for other artists on their tours.