. . . . . . . . . . . "Roland has performed worldwide with such artists as Diana Ross, Bruno Mars, Jennifer Lopez, Carrie Underwood, Mary J Blige, Beyonce Knowles, Stevie Wonder, Patti Labelle, Kirk Franklin, Gloria Estefan, Gladys Knight, Frankie Valli, 50 Cent, Nicole Scherzinger and international pop singer, Googoosh." . . . .