The challenge gets bigger as the Dominoes get smaller! Watch as 2,000 mini Dominoes (which are 80 times smaller than full size Dominoes) topple for a Guinness World Record.
A look back on some of Hollywood's biggest headlines.
Tom Petty "Won't Back Down" over the similarities between his 1989 hit and the Grammy-nominated "Stay With Me."
The "American Idol" winner wants to be released from recording and merchandising deals linked to the TV talent show.
There are so many different genetic forms of autism that using the singular term is misleading, researchers say.