Katy Perry & Justin Bieber

Hold on to your hats folks, heavy hitters Justin Bieber, B.o.B, Bruno Mars and Katy Perry are among the first confirmed performers set to knock your socks off at this year’s GRAMMYs Nominations Concert Live!

And just to add a little more excitement, the annual countdown to the biggest night in music will once again be hosted by LL Cool J.

This is the third time the nominees for the annual GRAMMY Awards will be announced live on primetime television. The event will be broadcast from Club NOKIA in Los Angeles on Wednesday, December 1st on CBS from 10 to 11PM Eastern.

Additional performers and presenters will be announced soon!

Hit Up GRAMMYs.com for More Info >

The 53rd Annual GRAMMY Awards will be broadcast live from the Staples Center in Los Angeles on Sunday, Feb. 13th, 2011 on CBS at 8PM Eastern.

For updates and breaking news, visit The GRAMMYs’ social networks on Twitter and Facebook.