 Complete the following phrase:  Underwood has stated that she has a great interest in sports. She has participated in the annual City of Hope Celebrity Softball tournament for charity for many years. The event takes place in Nashville, Tennessee, and benefits research for life-threatening diseases. In 2005, she performed the Star-Spangled Banner at Game 4 of the NBA Finals between the San Antonio Spurs and Detroit Pistons, and in 2006 at the 