Tonight’s the night the Grammy nominees will be revealed—every last one of ’em—with the expected face-off between prohibitive favorites Frank Ocean and Mumford & Sons providing the primary drama. The rollout will start with a bunch of the key categories, which will be revealed on the fifth annual CBS special The Grammy Nominations Concert Live!! – Countdown to Music’s Biggest Night, airing live from Nashville at 10 p.m. in the East and Central time zones. West Coasters without East Coast feeds are advised to go to grammy.com around 8 PST, when the entire list of nominees will be posted. We’ll also have them right here as soon as our stubby fingers allow. Exciting, huh? [HitsDailyDouble]