The folks over at Good Vibrations have confirmed Cee Lo Green has pulled out of his Good Vibration 2011 appearances due to being offered a performance spot at the Grammy Awards, as per their statement:
"...as the next chapter of F*ck You's world domination continues to play out, Cee Lo has been invited by the Recording Academy to perform live at the Grammy awards in February. Unfortunately this means he will no longer be available to appear at Good Vibrations Festival 2011 as originally planned. Aint that some shit?"