Lily Allen vs. Elton John. Stars fall out on stage

While Republican VP candidate Sarah Palin delivered her convention acceptance speech, daughter Piper provided care for baby brother Trig. [ 03 SEPTEMBER 2008 ] ST. PAUL, Minnesota (CNN) - Alaska Governor Sarah Palin introduced herself to the world Wednesday by calling herself a "hockey mom" and then asking what the difference was between a hockey mom and a pit bull. Lipstick," the Republican vice-presidential nominee said. Conventioneers waved banners reading "Palin Power" and "Hockey moms for Palin." Delegates from her home state of Alaska were spotted wearing buttons calling her "the hottest VP from the coolest state." "I love those hockey moms," she said. Palin began with a lengthy, minutes-long standing ovation as she accepted the Republican Party's nomination for vice president. It marked the first time in history that a woman has taken the stage as the GOP vice president pick. "I accept the challenge of a tough fight," said the woman nicknamed "Sarah Barracuda." Palin presented herself as both a mother and as an outside-the-Beltway reformer. Palin, whose youngest child has Down syndrome, also promised that families of special needs children will have "a friend and advocate in the White House."