As the first artist signed to Arista Records' country division, Alan Jackson's first single, "Blue Blooded Woman," peaked at a dismal No. 45 on the country charts in 1989. Clearly, things improved substantially with the next single -- the title track from his debut album, Here in the Real World -- and the hits haven't stopped yet. Fifteen years into his career, the superstar has sold more than 40 million albums and scored more than 30 No. 1 singles -- 21 of which he either wrote or co-wrote.