Singer performed 'Tik Tok,' 'Your Love Is My Drug' on episode hosted by Ryan Phillippe.By Amy Wilkinson, with additional reporting by Jocelyn Vena Ke$ha performs on "Saturday Night Live" Photo: NBC Given that Ke$ha once described her sartorial taste as "garbage chic," it's hardly surprising that her unique fashion sense took center stage during her musical-guest debut on this week's "Saturday Night Live," hosted by Ryan Phillippe. Earlier in the week, when MTV News caught up with the "Tik Tok" singer during rehearsals, she was reluctant to reveal her wardrobe choices for the show.