one of them is donatella's giacimenti urbani, a kind of urban environmental lab. today, they're holding a restart party, bringing life back into broken objects. and yes, i think i'll need paola's translation skills for this. - it's simple. people write their names on this board, along with the object they brought, so that they can keep track of the quantity of potential waste that was avoided. this hand mixer is fixed. yes. we avoided one kilogram of potential waste. okay. so we saved it. we saved one kilogram of waste. yes. a microwave oven. a microwave. a microwave. a microwave oven. couldn't save it? we couldn't save it. it couldn't be saved. is that fixable? yes, yes. so you'll get a smiley face? sure. - the complex subject of waste in milan resonates in many different spheres. the city has now implemented a policy aimed at reducing food waste and is at the helm of the milan urban food policy pact. it's basically an agreement on sustainable urban food systems signed by the mayors of 130 cities around the world. and that's great, but if i've learned one thing i

all the rgeousacdetails that we count on donatella giving us.et. >> so well said, brad. nikki, we saw a lot of red on the red carpet. ariana debose. >> making history in red. red was the color of the night. ariana debose wore it in valentino. simu liu in versace. rosie perez. it was amazing to see the celebrities wearing red, but in various silhouettes. >> all looks great. now it's time for snap judgments. zerina, we start with you. penelope cruz in chanel. penelope cruz in chanel. what did you think? >> well, first of all, i love the silhouette of this dress. loved the neckline. loved the buttons. i could have done without the bow, but she looks beautiful. she always kills it. stunning. >> another chanel ambassador with a very different vibe. >> okay, tara, you're up next. billie eilish, your thoughts? >> i love billie eilish. she was on trend for the night with a lot of young talent in black which you don't normally see. i thou was butul a 's v her. goes with the hair. i just thought it was elegant and divine. >> okay, nikki, lupita nyong'o in