Queen star Brian May left fans in a frenzy in his Instagram comments section after posting a clip of himself post-workout and shirtless.Pointing the camera towards himself as he sported a heart rate monitor around his chest, he spun the lens around to show off the Japanese skyline he was looking towards out of a large window. The 76-year-old musician is currently taking part in the last leg of his Rhapsody tour with bandmates Roger Taylor and Adam Lambert. He captioned the post: “My private gym! Not so glamorous but – job done! 8 peaks this time – day off – show time tomorrow in Sapporo. “Spor…