Paul McDonald kept grinning despite being gouged on "American Idol." The smiley singer-songwriter from Nashville, Tenn., was revealed to have received the fewest viewer votes on the Fox talent contest Thursday after kicking off Wednesday's film-themed performances with Bob Seger's "Old Time Rock and Roll" from "Risky Business." Jennifer Lopez requested the 26-year-old sing Rod Stewart's "Maggie May" as his swan song, and he happily obliged.