30 rock, jenna maroney, jane krakowski, sing, singing, song, singer, sometimes i sing too beautifully, songbird, ego, egotistic, egotistical, i rule, i'm awesome, i'm perfect, i'm flawless, perfect, flawless, flawfree, i'm better, i'm better than you, i'm amazing, high self esteem, self confident, self confidence, confident, confidence