Sunrise weatherman Grant Denyer went above and beyond the call of duty this morning when he got his gear off at the Sydney Opera House for renowned photographer Spencer Tunick. Grant joined 5200 peeps who posed nekkid in front of the Aussie icon. Grant was shot from the neck up and at one point kept his back to the camera as his bare behind was broadcast on the breakfast program. Click here to check him out. What do you think of Grant’s, er, ballsy move?