Tim McGraw will headline the Music City Jam during the 40th annual Country Radio Seminar taking place March 4-6 in Nashville. McGraw's private performance on March 4 will be one of the highlights of CRS, a convention aimed at country radio programmers and executives. Recent headliners at Music City Jam include Brad Paisley (2008), Toby Keith (2007) and Keith Urban (2006). McGraw is working with Coty Inc. to release his own line of men's cologne this month. His first children's book, My Little Girl, will be published on Oct. 21, and he will be featured in the Warner Bros. film, Four Christmases, which arrives in theaters on Nov 26.