Coming to you live this Friday, December 6th, LL Cool J will be hosting the GRAMMYs Nominations Concert, airing at 10pm EST / 7pm PST on CBS. In recent years, the GRAMMYs have enlisted the help of the rapper-turned-actor to read out the nominations for the famous music awards show, complete with a concert featuring today's biggest artists. So who's going to be there? "Royals" hit maker Lorde has a slot performing at the show (she's getting closer and closer to becoming a royal each and every day) while T.I. will join Robin Thicke for a rendition of "Blurred Lines" with legendary soul act Earth, Wind & Fire. Another exciting collaboration slotted up is with Keith Urban and Miguel, who will do a duet to Bill Wither's classic ode "Ain't No Sunshine". Katy Perry and Taylor Swift have previously-recorded performances that will be aired at the GRAMMYs Nominations Concert. For a preview of the show, head on over to CBS.com.