Marcus & Martinus Gunnarsen kicked off their international pop careers at 10--winning Norway's Melodi Grand Prix Junior with the cheery singalong "To Dråper Vann". The twins followed with a string of melodic Europop singles brimming with joyfully sweet choruses, playful and lovelorn lyrics and pulsing dirty house and R&B. Then there's the brothers' bright and animated vocals, delivered in Norwegian and, increasingly, English as well. The world waits to see what M & M will do next.