In a news release, Tim McGraw's publicist mentions that "an unnamed, pregnant superstar" took the stage at the wrap party for "Tim McGraw on Tour," Saturday night (Aug. 25) in Nashville. Presumably, that superstar was McGraw's wife, Faith Hill. The couple's third child is due in January. Hill toured with McGraw last year but did not join him on stage during McGraw's tour this year with Kenny Chesney and Mark Collie. The wrap party had a '70s theme, with shag rugs, lava lamps, candles, incense and brightly colored tie-dye throws. The Warren Brothers and McGraw and his Dance Hall Doctors band also played at the party.