Macklemore's cool gran makes Betty White look like a loser

She's five years older than Betty White -- and five times cooler. Helen, rapper Macklemore's 100-year-old grandma, has all the sass, style and moxie of America's favorite granny in his new music video for the song "Glorious." In the video, Macklemore surprises Helen on her 100th birthday, rolling into her sleepy California suburb in a...