Sarah Palin is a grandma; daughter Bristol gave birth

Sarah Palin's daughter Bristol, 18, gave birth to a boy named Tripp Easton Mitchell Johnson on Sunday, December 28, according to People magazine.

That's Antoinette Baldwin, doing her parody of Sarah Palin at yesterday's King Mango Strut parade in Coconut Grove, Florida.

A musical slide show of the popular yearly spoof parade is here.