Still going strong: Katy Perry and John Mayer went for a drive in Mayer's black Range Rover Sunday in Malibu, Calif. Photo agency X17 grabbed photos of the rumored couple, who have stepped out together frequently since the summer but have neither confirmed nor denied their budding relationship.
On Oct. 16, Perry, 28, and Mayer were spotted in New York ringing in Mayer's 35th birthday at trendy ABC Kitchen for lunch and hitting up nightclubs later in the evening. Just a few days later, on Oct. 19, the couple celebrated Perry's birthday at a vampire-themed bash held at the Magic Castle in Los Angeles.
Music's dark couple aren't new to the celebrity dating game, of course: Perry split from husband Russell Brand last year, while Mayer has been linked to fellow singers Taylor Swift and Jessica Simpson.
For more photos, click through to X17.