Tim McGraw wasn't wearing underwear during his Tuesday appearance on "The Ellen DeGeneres Show." He told Ellen, "These pants are too tight to have underwear on." As the audience laughed, Tim added, "Now I'm really embarrassing my daughters." Later, Ellen presented Tim with a basket of briefs. Also during the show, Tim McGraw pranked a stagehand. The guy was just supposed to tune Tim‘s guitar, but had to sit through Tim’s moans and groans, stretches and uncomfortable comments.