Grammy Line up: Drake, Robin Thicke,Macklemore and others signed on to perform.

It's the Grammys, so the lineup for The Grammy Nominations Concert Live!! — Countdown to Music's Biggest Night on Dec. 6 promises to be a good one. Drake, Keith Urban,Macklemore & Ryan Lewis and Robin Thicke,have signed on to perform so far. According to USA Today,additional performers will be announced over the next few weeks.
And LL Cool J will be returning for the fourth time to host the show. This is going to be so much fun.