If there's someone who knows a thing or two about the high-glamour life of music superstars, it's Tracee Ellis Ross. The Golden Globe-winning, three-time Emmy-nominated actress is best known for her roles in comedy shows like Black-ish, Mixed-ish, and Girlfriends (and her consistently exceptional red carpet style), but she also happens to be the daughter of the iconic songstress Diana Ross. But in the trailer for the new comedy The High Note, it's Tracee herself who's taking center stage and showing off her dulcet musical stylings as Grace Davis, a …