+ Justin Bieber, Katy Perry, B.o.B. and Bruno Mars will appear on "Grammy Nominations Concert Live" in Los Angeles on Dec. 1. (MTV News)
+ Kanye West had another Twitter eruption, this time at the "Today" show and host Matt Lauer, who he felt sabotaged his interview on the morning talk show. (Washington Post)
+ Jason Mraz thinks the Jonas Brothers song "Introducing Me" is awfully similar to his track "I'm Yours." (TheFABlife)
+ Christina Aguilera has received a star on the Hollywood Walk of Fame. (Wonderwall)
+ 50 Cent has popped up in a new video from YouTube celebrity Keenan Cahill. (Urlesque)