Most celebs have a tough time going about their day-to-day lives without being mobbed by fans and paparazzi alike. Sam Smith is not one of those celebs.
Smith was in Denver, Colorado's Red Rocks Amphitheater just hours before his sold-out show there when he decided to photobomb a news report and went completely unrecognised by both the interviewer and the interviewees, who actually told him to 'Get out of here' once they cottoned on to his antics.
The two women were being interviewed about all the things that one could do at the amphitheater when Smith walked into frame, presumably to take in the stage he would be performing on later, and started doing peace signs to the camera and putting bunny ears on one of the women (how very Ginger Spice of him).
Bet they're raging they didn't take a closer look now.