From action sequences to emotional dramas, Lenny Kravitz leaves no doubt about his talent and perfectly shaped bum. His music video TK421 will make you shake with excitement. After all, Lenny Kravitz starred there completely nude! Throughout the entire video, this American singer danced around the room. Lenny Kravitz playfully twirled his nude booty while standing near the window. He also turned to face the camera and his penis was only slightly covered by his fingers.