Mariah Carey and Thomas Mottola, June 5, Manhattan. Bride’s the singer; groom’s the topper of Sony Music.Linda Danklefs and Paul Nichols, May 7, Marina del Rey. Bride’s non-pro; groom is a senior account executive for the Lippin Group. Genevieve Spielberg and Armin Frey, May 30, New York. Bride is associate manager of ICM Artists Ltd. in N.Y.; groom is non-pro.