PERSON@1 -LRB- February NUMBER@1 , NUMBER@2 -- c. April NUMBER@3 , NUMBER@4 -RRB- was an MISC@1 musician , best known as the lead singer , guitarist and songwriter of grunge band Nirvana .

PERSON@1 -LRB- February NUMBER@1 , NUMBER@2 - April NUMBER@3 , NUMBER@4 -RRB- was the lead singer and guitarist of the grunge band MISC@2 , which also included bassist PERSON@2 and drummer PERSON@3 .
