Ellen Pompeo Rocks a Jumpsuit at Billboard Awards 2015
Ellen appeared on stage with Taylor to debut the video and then presented the singer one of her eight awards during the night.
Another presenter seen at the show was former Dancing With the Stars contestant Danica McKellar.
Molly Sims celebrated the event from Los Angeles as she hosted the Samsung Home Appliances live viewing party at a rooftop event.
FYI: Ellen is wearing a Zuhair Murad Couture jumpsuit. Danica is wearing a Shail K dress.