Meet artist Andrea Ross, mentee of Andrew Lloyd Webber

Meet artist Andrea Ross, mentee of Andrew Lloyd Webber

SIOUX FALLS, S.D. (KELO/AP) — A local musician with strong ties to one of the world's biggest names in music says she is "thrilled" to be performing Friday night at the venue now synonymous with a Sioux Falls summer night: the Levitt Shell. "We've got sort of a big band, orchestral sound," Andrea Ross said Wednesday. "I sing a lot with symphony orchestras, and I really wanted to bring that same spirit to the Levitt." KBOOM Fireworks celebra…