Marcus & Martinus drop by the Hollywire studio! We can tell them apart because Marcus has longer hair and Martinus has a tiny mole on his lip. Their fans love to talk about their shoe size! They hung out with Jason Derulo, they have met him three times, and are going on tour with him!! They met him in Norway at a music studio a year ago, when he asked the twins to go on tour with him. Martinus teaches us some dance moves in the studio! They perform 19 songs per show!