January 2, 2013 4:42 pm Liza Minnelli Guest Stars on “Smash” On the set of “Smash” Liza Minnelli talks about guest starring and singing an original song on the NBC series. She also chats about ad-libbing her lines and how she comes up with them. US & World Videos 1:07 Britney Spears spotted as authorities respond to alleged hotel incident 2:15 Prince William and Kate Middleton ‘going through hell,' friend claims (report) 8:01 Lady Gaga's outfit changes, Rihanna's bold looks and more iconic Met Gala moments 1:59 TikTok's Maddy Baloy dead at 26: Gordon Ramsay and Tay Lautner pay tribute 3:04 Progress being made on demolition of overpass on I-95 in Norwalk