pp gaga Kate Gosselin picks her Kentucky Derby hat; Gaga goes R rated in Mexico CityMust-see snapshots from the week that just was

Friday: Lady Gaga (above) tones down her look to announce tour dates in Mexico City.

Meanwile, in Louisville, Ky., Kate Gosselin tried on Derby day hats at the Style Icon 2011 Luxury Gifting Suite at the Galt House.

pp kate gosselin Kate Gosselin picks her Kentucky Derby hat; Gaga goes R rated in Mexico CityThursday: Jennifer Aniston poses with her new fragrance, ‘Jennifer Aniston,’ at a New York Sephora store.

pp aniston Kate Gosselin picks her Kentucky Derby hat; Gaga goes R rated in Mexico CityWednesday: Sophia Loren gets friendly with a life-sized Oscar statuette at the Academy of Motion Picture Arts and Sciences’ tribute to, you guessed it, Sophia Loren.

pp sophia Kate Gosselin picks her Kentucky Derby hat; Gaga goes R rated in Mexico CityTuesday:Ginnifer Goodwin shows off a new ‘do at the premiere of her new movie, “Something Borrowed,” at Hollywood’s Grauman’s Chinese Theater.

pp goodwin Kate Gosselin picks her Kentucky Derby hat; Gaga goes R rated in Mexico CityMonday: Actors Will Ferrell and John C. Reilly share a kiss courtside at the game between the Dallas Mavericks and the Los Angeles Lakers.

ff reilly ferrell Kate Gosselin picks her Kentucky Derby hat; Gaga goes R rated in Mexico CityAlso Monday, Jay-Z and wife Beyonce arrive at the annual Met Costume Institute gala. For more photos, take some time to look through our gallery from the evening’s arrivals.

pp hova bey Kate Gosselin picks her Kentucky Derby hat; Gaga goes R rated in Mexico City