Sophia Grace and Rosie Interview Katy Perry at Grammys, Unicorns and Glitter Hit NYFW, Plus V-Day Celebrations

Award season and New York Fashion Week continued this week, along with Valentine's Day and the big reveal of the Sports Illustrated swimsuit edition cover model Kate Upton. We checked out eye candy at the BAFTAs and hot couples at the Grammys, and celebrated Joseph Gordon-Levitt's birthday and Matt Bomer coming out. But we also mourned the loss of a legendary singer with Whitney Houston's unexpected death last weekend. See the highs and lows of the week now in photos.