Back in 2005 she was an unknown face who won over the country to win the fourth season of American Idol.Now, Carrie Underwood is a seven-time Grammy winner and the fifth highest-certified female artist in the U.S.The 37-year-old country singer took a trip down memory lane on the 15th anniversary of her Idol win, thanking fans in a tweet on Monday.
Star: Carrie Underwoodtook a trip down memory lane on the 15th anniversary of her American Idol win, thanking fans in a tweet on Monday'WOW, I cannot believe it’s been 15 years since my @americanidolwin,' she wrote.Adding: 'It’s been an incredible ride and I couldn’t have made it through without all of you guys!!