A 10-year-old boy with autism left shoppers shocked as he belted out a soulful rendition of Smokey Robinson’s “Who’s Lovin’ You.” Calum Courtney, 10, is especially talented in music, his mom said. “He taught himself to play the drums when he was 18 months old,” Courtney explained. “He loves how it feels and hearing the sound of his voice when he sings.”