The GRAMMYs were only a little over a week ago but it feels like so much longer. Lady Gaga's career-spanning, 10-song tribute to David Bowie was pretty mind-blowing...definitely a highlight of the night. Some people don't agree, like Bowie's son Duncan Jones, who subtly threw shade at the pop star with a Tweet that read "'overexcited or irrational, typically as a result of infatuation or excessive enthusiasm; mentally confused.' Damn it! What IS that word!?" That's...the Oxford Dictionary definition of "gaga."