Katy Perry made a glamorous transformation on set yesterday when she prepared to film scenes for Comedy Central's Kroll Show in Hollywood. It isn't clear what Katy's cameo will entail, but she was dressed to the nines in a printed ensemble and stilettos. The spot may be a sign that there is a bit of truth to those rumors about Katy Perry getting back together with John Mayer. Nick is a mutual friend of John's pal, Ricky Van Veen, who is also dating Girls star Allison Williams. According to previous reports, Katy and John were spotted flirting at her Memorial Day party a few weeks ago and the two have started casually dating again. The couple has been dating on and off for almost a year.
Katy's Kroll Show appearance links her with another funny lady — Amy Poehler. Rumors popped up last month that Amy and Nick are dating, and Amy has filmed a guest spot for his comedy show.