Sheryl Crow made an unannounced appearance to sing a duet version of "If It Makes You Happy" during the encore of Jack Ingram's
concert at the Exit/In in Nashville on Saturday night (March 3). In addition, she also provided harmonies on a new song, "Hold
On." She also sings the part on his upcoming album, This Is It, which will be released on Big Machine Records on March
27. Ingram was Crow's opening act on her tour last June.




